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CINBES- Ch. 7 (991005)-p.1 KINDS OF ACCESS POINTS (from Cataloging Textbook, Chapter 7.2) Francis Miksa © May 2001 All rights reservedCINBES- Ch. 7 (991005)-p.2 7.2 KINDS OF ACCESS POINTS. Access point terminology has already been divided (Section 7.11 above) into that which consists of codes and that which consists of words. What is now necessary is to extend those divisions into useful subcategories and to describe the main characteristics of each, particularly in tbe context of the MARC format. When listing kinds of access points and for purposes of brevity the phrase “Access Point” will be abbreviated as “AP,” “Access Points” will be abbreviated “APs,” and other abbreviations will be built on these—for example, MAP (Main Access Point), AAP (Additional Access Point), TMAP (Title Main Access Point), TAAP (Title Additional Access Point), NAAP (Name Additional Access Point), etc. In addition, since subject access points constitute an entire topic in an of themselves, their discussion will be placed almost entirely in chapter 9 where they are dealt with in terms of the Library of Congress Subject Heading system. Here, discussion will be limited for the most part to access points as they are found in the AACR2r and to other codes that are highlighted in the MARC record. 7.21 APs Consisting of Codes. Access points consisting of codes are those which contain numeric or alphanumeric symbols derived from one or another system of such symbols. These play different roles in computerized and in manual library catalog environments. Thus, they will be presented here in terms first of MARC based access codes of this kind, and second in terms of codes as found in manual library catalogs. 7.211 APs as Codes in MARC Based Systems: The MARC format contains variable length fields between 010 and 099 for a variety of kinds of data including access points as codes although the latter are not described as access points per se. The reason that they are not formally called access points is likely because the MARC format was derived from the unit record system which in turn is an organizational structure for card catalogs dependent on the alphabetization of verbal access points. In short, the unit record system has historically made only minimal provisions for the inclusion of coded data and even when such data has been included there has been no corresponding provision for using such data for access points. Thus, these codes have never been formally called Access Points. However, regardless of how they are labeled, they constitute potential of access points especially in a computerized setting. The codes found in this range of MARC fields (including those marked with an asterisk [*] which clearly provide only descriptive rather than AP data) are as follows: 010 Library of Congress Control Number (An LC System of Registry numbers.) 015 National Bibliography Number (National bibliography numbers of any country.) 017 Copyright Registration Number (Copyright numbers of any country.) 018* Copy Article-Fee Code 020-049: Standard numbers, codes, and other data 020 International Standard Book Number 022 International Standard Serial Number 024 Other Standard Identifier (Source of number is specified by the first indicator position.): 0 International Standard Recording Code 1 Universal Product Code 2 International Standard Music NumberCINBES- Ch. 7 (991005)-p.3 3 International Article Number 4 Serial Item and Contribution Identifier 7 Source specified in subfield $2 8 Unspecified type of standard number or code 025 Overseas Acquisition Number (Numbers which represent LC’s over- seas acquisitions program.) 027 Standard Technical Report Number (Coding format and standards for the STRN originate from the NTIS.) 028 Publisher Number (For printed music, sound recordings and videorecordings.) 030 CODEN Designation (Originally developed in 1963 by the American Society for Testing and Materials. Assigned since 1975 by Chemical Abstracts Service. A six character code for scientific and technical periodical titles.) 032 Postal Registration Number (For codes of any country, although for the U.S. it is used for serials mailed at a second class rate.) 033* Date/Time and Place of an Event 034* Coded Cartographic Mathematical Data 035 System Control Number (For control numbers of system(s) other than the one holding the present record.) 036 Original Study Number for Computer Data Files 037 Source of Acquisition (Includes stock numbers, terms of availability, name of source; excludes government publication numbers.) 040 Cataloging Source (Name of the organization(s) that created the original IE record, input it into a system, and changed the data, etc. In combination with fixed length data subfield 008/39.) 041* Language Code (Used when fixed length data subfield 008/35-37 is insufficient to convey full information for a multi-lingual item or translation.) 042* Authentication Code (Indicates which authentication center has reviewed a national database record—for ex., LC, Conser, ISDS Canada, etc.) 043 Geographic Area Code (Up to 3 such codes taken from USMARC Code List for Geographic Areas.) 044 Country of Publishing/Producing Entity Code (For use when fixed length data subfield 008/15-17 is insufficient to convey full informa tion; taken from USM4RC Code List for Countries.) 045 Time Period of Content (Varies in application according to type of material.) 046 Type of Date Code, Date 1, Date 2 (BC Dates) (Contains date of item information when it cannot be recorded in fixed length data subfield 008/6-14 because such information contains more than one BC dates. When used, fixed length data subfield 008/06 is set to code “b”.) 047 Form of Musical Composition Code (Used when fixed length data subfield 008/16-17 is code “mu” for multiple forms. The codes found in 008/16-17 are placed in multiple $a subfields here.) 048 Number of Musical Instruments or Voices Code (Codes representing medium of performance, including types of instrumental and vocal combinations and the number of parts.) 050-099: Classification System Numbers: 050 Library of Congress Call Number (As assigned by LC or an agency using the Library of Congress Classification—LCC.) 051 Library of Congress Copy, Issue, Qffprint Statement 052 Geographic Classification Code (Derived from LCC, Class G and expanded Cutter


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