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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.

titles issued annually or less frequently than once a year, or irregularly serials published at least twice under the same title, and those first pub

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 selected

serials which are generally regarded as part of the conventional literature

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

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

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

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

Many thanks are due to managing editor Louise Valuck for her persistence and alertness in carrying out this complex work, to Despina Papazoglon, Robert Aga jeenian, and Leigh Carole, assistant editors, and to the various outside contributors for their constructive and devoted interest. We acknowledge the work of managing editor Merle Rohinsky and her staff in assigning the country codes to the Ulrich's periodical titles in this director's combined index.

Our appreciation is also extended to the librarians of the Library of Congress, the National Library of Medicine, the New York Public Library, New York University, the United Nations, and of university, college, public, and special libraries throughout the country for their interest and support. We also appreciate the cooperation of the publishers and their representatives who contributed the necessary information for selecting and listing titles.

The editor and publisher of this volume welcome any suggestions for the improvement of future editions and updating services. We intend to publish new editions of this directory biennially, with quarterly supplements appearing between the editions. A supplement for serials, covering both Ulrich's and Irregular Serials, is planned for the end of 1972, while the quarterly updating service will begin in March 1973.

EMERY KOLTAY, Director, Serials Bibliography.

APPENDIX B

PREFACE

The 15th edition of Ulrich's International Periodicals Directory includes entries for approximately 55,000 in-print periodicals published throughout the world. Now in one volume, it updates and expands the base volumes of the 14th edition and includes as well those titles issued at regular intervals which were listed in the Bowker Serials Bibliography Supplement 1972. New editions of Ulrich's and its supplements are published biennially, in alternating years.

For the first time, the assigned International Standard Serial Number (ISSN) with country code appears in the main entry. The ISSN is a concise, unique and unambiguous numerical code to identify serial publications. The ISSN system is the result of the cooperative efforts of the American National Standards Institute (ANSI) Standards Committee Z39 on Standardization in the Field of Library Work, Documentation, and Related Publishing Practices, and the International Organization for Standardization (ISO), which designated the Bowker Serials Bibliography database as the starting point for the implementation of the standard. The country codes, provided in these listings as an additional aid, are those used in the Library of Congress MARC II format.

The subject heading list has been expanded and revised to reflect new discip lines and to provide finer breakdowns for more direct access to specific subject 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 spectrum of available coding methods examined included: (1) structured codes which reflect characteristics of the individual serials; (2) derivative codes, 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 this app plies to each of the descriptive elements of the series, a registration code for 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 responsibility includes interpreting the definition of a serial,' distributing directories of serial number assignments, circulating data on revisions and correctons, making 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 welcome. They should be sent to the American National Standards Institute, 1430 Broadway, New York, N.Y. 10018.

AMERICAN NATIONAL STANDARD IDENTIFICATION NUMBER FOR

SERIAL PUBLICATIONS

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 administered. 2. Definitions

Serial. A publication issued in successive parts bearing numerical or chronological designations and intended to be continued indefinitely.1 3. Code description

3.1 Format. The code is a registration number composed of seven decimal 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, is formatted in two groups of four digits, the two groups being separated by a 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 digit. 3.2 Characteristics of the code

3.2.1 Uniquene88. A unique, one-to-one correspondence exists between each assigned code number and the serial to which it is assigned, so that for each code 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 code number and serial, once established through assignment, is permanent.

3.2.3 Immutability of Format. The format of the code as specified will not change.

3.2.4 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 reduction cbar. acteristics which aid in accuracy in use : an easily read format for error avoidance, and a check digit for error detection, 4. Application

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

1 Definition from Anglo-American Cataloging Rules. Chicago : American Library Association, 1967, glossary. pp. 343-347.

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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