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2. Write the constant weighting factors associated with each position of the basic number.

8 7 6 5 4 3 2 3. Multiple each digit by its associated weighting factor.

8 14 18 20 20 18 14 4. Sum the products of the multiplications.

8+14+18+20+20+18+14=112 5. Divide the sum by the Modulus 11 to find the remainder.

112--11=10 plus a remainder of 2 6. Subtract the remainder from Modulus 11 to generate the required check digit. If the check digit is 10 generate a check digit of X.' If there is no remainder, generate a check digit of zero.

11-2=9 7. Append the check digit to create the standard eight-digit ISSN.

ISSN 1 2 3 4-5 6 7 9

IMPLEMENTATION It took more than three years from the beginning of the work of ANSI Z39 subcommittee 20 on serials until ISSN became an official standard. The value of a standard is realized only when it is implemented, and the publishing and library world fully understands it and uses it for the purpose for which it was designed. The established rules and principles of a standard must be strictly followed. Deviations, unimportant as they may seem in the publisher's or user's judgment, endanger the final success of the standard.

The work of those libraries seeking to adapt computer technology to control their serial operations show's that serial record management is a complex and difficult operation. Standardization offers a key to solving these difficulties. The first step toward standardization was taken with the approval of International Standard Serial Numbering.

The second step has now been taken: it is this directory that begins the implementation of International Standard Serial Numbering.

(Reprinted in part from the Bouker Annual, 1972, "International Standard Serial Numbering (ISSN)," by Emery Koltay.)

PREFACE Irregular Serials and Annuals: An International Directory is designed as a research tool to serve the library profession, to support the work of all libraries in supplying information to their users, and to provide a reference source for business and professional use in this country and abroad.

Serials and continuations such as proceedings, transactions, advances, progresses, reports, yearbooks, annual reviews, handbooks, and periodical supple. ments constitute a "twilight area" between books and periodicals. Our aim with the first edition of Irregular Serials and Avrnuals was to begin shedding light on that twilight area. This second edition, covering some 20.000 such publications, goes a step further, including an International Standard Serial Number (ISSN) for every entry. This unique identification number provides a means for solving the various open problems related to serials in general and to the automation of serial control

Irregular Serials and Annuals is a companion volume to T'lrich's Interna. tional Periodicals Directory. It is international in its coverage, seeking to include material published in languages using the roman alphabet or having abstracts, subtitles, or some information in English. These two directories, both on magnetic tape, constitute the new “Bowker Serials Bibliography."

Limitations of inclusiveness in a directory of this kind are determined by its expected use. Our aim is maximum title coverage and a subject breakdown which will satisfy the widest range of use. Because of the great number of serial publications, we have established certain criteria for inclusion. While ('lrich's lists only those publications that are issued more than once a year, this directory includes:

itse op Modulus 11 can Mometimes result in a check digit of 10 Ir this were used the Standard Serial Number would not always be the required eight digits in length. Therefore. the X in used to represent the check digit 10, thus maintaining the uniform length of eight digits.

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titleg issued annually or less frequently than once a year, or irrems! serials published at least twice under the same title, and those arst ja

lications which plan to have subsequent numbered issues current materials, whose last issue was published no earlier than January 1

1963. Excluded are:

national, state, and municipal documents, with the exception of mind

serials which are generally regarded as part of the conventional literala

of scientific, technical, or medical research publications which are essentially administrative in content, such as Des

bership directories, annual reports, house organs, or local inte

publications The data given for each publication were gathered from the publiebers or that representatives, from questionnaires, and from sample copies of serials received Many valuable suggestions received from these sources have been ideoind into this edition; others will be used in future editions.

We wish to express our appreciation to the Bowker Company's manereret for its strong support and competent guidance, and for alloting resourus fruit be extensive editorial work needed to create the serial data-base from which both this directory and Tlrich's are drawn.

Many thanks are due to managing editor Louise Valuck for her peralatan alertness in carrying out this complex work, to Despina Papazoglou. Rent Aga jeenian, and Leigh Carole, assistant editors, and to the various outside me tributors for their constructive and devoted interest. We acknowledge the wind of managing editor Merle Rohinsky and her staff in assigning the cuntry code to the lirich's periodical titles in this director's combined index

Our appreciation is also extended to the librarians of the Library of l'ong the National Library of Medicine, the New York Public Library, New Tricomp University. the l'nited Nations, and of university, college. publie, and seria libraries throughout the country for their interest and support. We ale asupra ate the cooperation of the publishers and their representatires who mntrinca the necessary information for selecting and listing titles.

The paditor and publisher of this volume welcome any surpations for the improvement of future editions and updating services. We intend to publish or editions of this directory biennially. with quarterly supplements appearing between the editions. A supplement for serials, covering both I loud. 234 Irrroular Scrigla, is planned for the end of 1972, while the quarterly updal. service will begin in March 1973.

EVERY KOLTAY, Director, Serial. Brodography

larration moncerning periodicals was obtair f em up his ronal examination of the public 15 . vedition which could not be updated in ti P4!2 ** folosing the title.

dreWe have inade every effort to provid It Biber Company has no legal responsibility

belle Weinrite you, the user, to subi *T# may matinue to provide you with the i

1.1.4 to express our sincere appreciation and

na Rubelle Katz. Diana Moon, Jacqueli Boy R:*Rith Rara Vachnin, Irving Klein, Fer Wayne ard to the many librarians, pulishers, and *** modi?.ng to the compilation of this editi hom I Heter. Manager of Bawker's Data Sei siya ngent, and guidance.

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APPENDIX B

APPENDIX 0
Area: AN NATIONAL STANDARD IDENTIFICAT

PUBLICATIONS
dan batinan National Standard implies a conse

is Rebor and provisions. An American
ir b ald the mangfacturer, the copsume
I yol an diberican National Standard do
tymo he has approved the standard

*** tasing or using products, processe
r and American Sational Standards ar

11 to main the latest editions.
logo Vitory Thuis American National Sta
$1918'. NimThe procedures of the An
P** .tr at artion be taken to reaffirm, r
be 4*** O prar from the date of publi
by

s mas receive muurrent inform
**** Arapriran National Standards Inst

PREFACE

The 15th edition of l'Irich's International Periodicals Directory includes entire for approximately 5.5.0 in-print periodicals Dublined throuxbout the W A Now in one volume, it upwates and expands the base volumes of the 14th paleizee and include as well the titles in ued at regular intervals which were listed in the Bokker Serialx Billigraphy Supplement 19, Veneditions of ( Inca ity supplements are published biennially, in alternating yeark

For the art times, the asnihed International Standard Serial Numbert with country cwe appears in the main entrs The ISSNisa reis unique 1 unambiguous numerical code to identify marial publications The ISSV . the result of the exmoperative efforts of the Innerlian.Vatial Standards Iris (ANSI) Standarts Committee 220 on Standardization in the Held Dran Work. I boumentation and Rulated Publishing Practices and the Internal Organization for Standardization (ISO) which desionated the Buwart wtuas* Bibliogragoly datalap as the starting point for the implementation of the ard. The country codes pride in the listings as an additional aid ar used in the library of (angre JAR II format

The bjert hradin list has done to expanded and revised to reflect wa lines and to provide finer breakdowns for more dirt aeries to the att

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FOREWORD e is a part of American Vielestial Publications, 739.0 1971.

* was prepared by Subcommitte " "* Standardization in the Fit

Real Publishing Practices, 239.( to

the American National Star S eria \xital labrary Associations

r .lt was organized in May 19 three datar dard registration code for period

areas. For the first time, Dewey Decimal Classification numbers (from the 17th edition of Derry Decimal Classification and Relatire Inder with some 18th edi. tion modifications) are included with each entry to give additional subject information.

In addition to the main text, this directory contains a separate listing of some 1.800 periodicals that have cea sed or suspended publication since the last edition, plus a separate title listing of periodicals that have appeared since 1971. Specific details on the organization of Ulrich's will be found in the "User's Guide" follow. ing this preface.

l'lrich's includes periodicals which are currently in print, issued more fre. quently than once a year, and nsually published at regrilar intervals over an indefinite period of time. Annuals and irregular serials are covered in a companion volume entitled Irregular Serials and Annuals: An International Direotory, 2nd edition (Bowker, New York, 1972) and the Bouker Serials Bibliography Supplement 1972.

All information concerning periodicals was obtained through direct inquiry to publishers or by personal examination of the publication itself. Entries included in the 14th edition which could not be updated in time for publication are listed with an asterisk following the title.

Although we have made every effort to provide accurate information, the R. R. Bowker Company has no legal responsibility for accidental omissions or errors in the listings. We invite you, the user, to submit comments and suggestions so that we may continue to provide you with the most accurate and up-to-date information.

We wish to express our sincere appreciation and thanks to the members of the editorial staff : Rochelle Katz, Diana Moon, Jacqueline Mullikin, Despina Papazoglou, Ruby Ruth, Raya Yachnin, Irving Klein, Fern Steinberg, and Myra Weinberger, and to the many librarians, publishers, and editors who have so generously contributed to the compilation of this edition. A special thanks to Mrs. Margaret T. Fischer, Manager of Bowker's Data Services Division, for her strong support, encouragement, and guidance.

MERLE ROHINSKY,

Managing Editor. OCTOBER 1973.

APPENDIX C

AMERICAN NATIONAL STANDARD IDENTIFICATION NUMBER FOR SERIAL

PUBLICATIONS

An American National Standard implies a consensus of those substantially concerned with its scope and provisions. An American National Standard is intended as a guide to aid the manufacturer, the consumer, and the general public. The existence of an American National Standard does not in any respect preclude anyone, whether he has approved the standard or not, from manufacturing, marketing. purchasing, or using products, processes, or procedures not conforming to the standard. American National Standards are subject to periodic review and users are cautioned to obtain the latest editions.

Caution Notire.--This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of publication. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute.

FOREWORD

(This Foreword is not a Part of American National Standard Identification

Number for Serial Publications, Z39.9-1971.) This standard was prepared by Subcommittee 20 of American National Standards Committee on Standardization in the Field of Library Work, Ixumenta. tion, and Related Publishing Practices, Z39. ('ommittee 239 is organized under the procedures of the American National Standards Institute and sponsored by the Council of National Library Associations.

The subcommittee was organized in May 1968 and charged with "the develop ment of a standard registration code for periodical and serial publications."

- the assignment of a code number, the cer
. a given publication is a serial.
... mermination. The central authority will maint

sestral authority will foster the broad ava

gan authority will promote the use of the
den of directories and serials to incorporate
Sul serials and on the serials themselves.

The spectrum of available coding methods examined included: (1) structured codes which reflect characteristics of the individual serials; (2) derivative code which, while partially reflecting characteristics of the serial, are derived from the expression of one or more of the characteristics; and (3) registration codes which have only the property of unique identity.

Because the one consistent characteristic of the serial is change, and thus sp plies to each of the descriptive elements of the series, a registration code tak serials has been selected.

A fundamental requirement for a registration system is central control of the registration process. In the case of serials an equally critical element is the de finition and description of the serial entities to be assigned numbers.

The Library of Congress has agreed to serve as the registration center subject to the availability of the necessary funds, manpower, and space. This respre sibility includes interpreting the definition of a serial,' distributing director of serial number assignments, circulating data on revisions and correctons mal ing cross references between serial numbers, and encouraging the use of standard serial numbers.

Suggestions for improvement gained in the use of this standard will be wel come. They should be sent to the American National Standards Institute, 1930 Broadway, New York, N.Y. 10018.

PROCEDURE FOR CALCULATION OF THE

of a check digit helps guard against erroi 17 .on.

res digit is particularly effective in detectin moes digit used is calculated on a Modulu:

TABLE AL.-PROCEDURE FOR CALCULATION OF TH

AMERICAN NATIONAL STANDARD IDENTIFICATION NUMBER POR

SERIAL PUBLICATIONS

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AMERICAN NATIONAL STAND. Evasland in this booklet is one of nearly 4,000 .Ent. an National Standards Institute, to

1. Purpose and scope

This standard defines the structure of a concise, unique, and unambiguous code for serial publications. The code is solely for the identification of serials It recognizes that the assignment of the code numbers must be centrally ad ministered. 2. Definitions

Serial. A publication issued in successive parts bearing numerical or creer logical designations and intended to be continued indefinitely 3. Code description

3.1 Format. The code is a registration number composed of seven derime digits plus an eighth check digit. The check digit is calculated as outlined in the Appendix.

The external representation, that is, the code, when used in publication, formatted in two groups of four digits, the two groups being parated by : hyphen (XXXX-XXXX) wherein each X is a digit, all of which must be present. The hyphen is an aid to recognition. The eighth digit is the check dig! 3.2 Characteristics of the mode

3.2.1 ('niquene 88. A unique, one-to-one correspondence exists between each a signed code number and the serial to which it is assigned, so that for eademode number there is only one serial and for each serial there is only one code number

3.2.2 Permanency of Assignment. The relationship between mode number and serial, once established through assignment, is permanent.

3.2.3 Immutability of format. The format of the code as specified will be change.

3.2.6 Conciseness. The code contains sufficient digits to achieve uniqueness and provide for error checking but is otherwise as short as possible.

3.2.5 Error Reduction and Detection. The code has two error inductiut chiar acteristics which aid in acruracy in use : an easily rrad format for error arold ance, and a check digit for error detection, 4. Application

4.1 Assignment. The assignment of code numbers will be administered by : central authority which will interpret cataloging rules and definitions as it quired. This includes working definitions of serials and the distinction between serial entities involved in splits, mergers, title changes, and otber anomalies

Pas ndards Institute provides the machinery

wie to Fliminate duplication of standard
** 13dards into single, nationally accepted sta
15- 7: Salaal Standards."
Lari stard represents general agreement am

* best current practice with regard t
m e d standards cut across the whole fabri
d a l of goods and services. American N

' xdures, reflect a national consensus
ut m rrnical, and professional organiza
** --verd standards are used widely by

el state, and federal government:
"' and lasitute, under whose auspices

moringhouse and coordinating body Pal e It is a federation of trade associat L e and consumer organizations. Some exte as company members.

man National Standards Institute is tt yoga.organization for Standardization (1

1. meston (IEC), and the Pan An
1. Through these channels American ini
***"s! bel American National Stand

atual standards bodies of more than 5
t est of all American National Standar

AMERICAN NATIONAL ST

1130 Broa

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Prior to the assignment of a code number, the central authority will obtain evidence that a given publication is a serial,

4.2 Dissemination. The central authority will maintain a record of code numbers assigned.

The central authority will foster the broad availability of lists of code numbers.

The central authority will promote the use of the code by encouraging the publishers of directories and serials to incorporate the code numbers in any directories of serials and on the serials themselves.

PROCEDURE FOR CALCULATION OF THE CHECK DIGIT The use of a check digit helps guard against errors resulting from improper data transeription.

The check digit is particularly effective in detecting transposition errors.

The check digit used is calculated on a Modulus 11 basis as indicated in Table Al.

TABLE AI.--PROCEDURE FOR CALCULATION OF THE CHECK DIGIT

Procedure

Example

W te the dirits of the basic number... 2 Write the constant weighting factors associated with each position of the 8 7 6 5 4 3 2

basic number. 3. Multiply each digit by its associated weighting factor..................

.....8 14 18 20 20 18 14 4. Sum the products of the multiplications...

8 + 14 +19+ 20+ 20 + 18+ 14 -112 5. Divide the sum by the modulus 11 to find the remainder......

. 112+ 11 = 10 plus a remainder of 2 6. Subtract the remainder from Modulus II to generate the required check 11-2 9

digit. If the check digitis 10. generate a check digit of X.. if there is no

remainder, generate a check digit of zero. 7. Append the check digit to create the standard 8-digit standard serial number 1234-5679

(SSN).

1 Use of Modulus 11 can sometimes result in a check digit of 10. If this were used, the standard serial number would not always be the required eight digits in length. Therefore, the X is used to represent the check digit 10, thus maintaining the uniform length of eight digits.

AMERICAN NATIONAL STANDARDS The standard in this booklet is one of nearly 4,000 standards approved to date by the American National Standards Institute, formerly the USA Standards Institute.

The Standards Institute provides the machinery for creating voluntary standards. It serves to eliminate duplication of standards activities and to weld conflicting standards into single, nationally accepted standards under the designation "American National Standards."

Each standard represents general agreement among maker, seller, and user groups as to the best current practice with regard to some specific problem. Thus the completed standards cut across the whole fabric of production, distribution, and consumption of goods and services. American National Standards, by reason of Institute procedures, reflect a national consensus of manufacturers, consumers, and scientific, technical, and professional organizations, and governmental agencies. The completed standards are used widely by industry and commerce and often by municipal, state, and federal governments.

The Standards Institute, under whose auspices this work is being done, is the t'nited States clearinghouse and coordinating body for standards activity on the national lerel. It is a federation of trade association, technical societies, profes. sional groups, and consumer organizations. Some 1,000 companies are affiliated with the Institute as company members.

The American National Standards Institute is the United States member of the International Organization for Standardization (ISO), the International Electrotechnical Commission (IEC), and the Pan American Standards Commission (COPANT). Through these channels American industry makes its position felt on the international level. American National Standards are on file in the libraries of the national standards bodies of more than 50 countries. For a free list of all American National Standards, write:

AMERICAN NATIONAL STANDARDS INSTITUTE, INC.,

1430 Broadıcay, New York, N.Y. 10018.

57-786—76--pt. 3—447

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