BACKGROUND: In 1982, the decision was made to add the imprint date to the call number of all monographic works. Prior to that date, several formal and informal memos were used as guidelines to determine if a date was needed in the call number. This instruction sheet provides guidelines on adding the date to the call number for monographic works.
1. General rule. Add the date of imprint to all monographs. Examples:
2. Special situations.
111 2_ NISER Staff Seminar (1979-1980 : Ibadan, Nigeria) à use 1980
111 2_ International Congress of Navigation (25th : 1981 : Edinburgh, Scotland) à use 1981
b. Photocopy or facsimile editions. Add the date from the 260 field and add “a” à e.g.: 1945a.
.I33 1982c, etc.
d. Corporate authorship. For works entered under a corporate body, use the imprint date. If another work by the same corporate body is received, use work letters starting with a (cf. G 220). Examples:
.R37 1981b, etc.
f. Date in main entry uniform title area. When there is a date in the main entry uniform title area, use the imprint date.
130 Survey of minority owned business enterprises (1982)
260 $c 1985
à use 1985 in the call number
3. Exceptions to adding a date.
a. Supplement and indexes. Do not add a date to the call number after the designations Suppl. or Index. Examples:
.C64 1977 Suppl.
.C64 1977 Suppl. 2
.C64 1977 Index
.C64 1977 Index 2
b. Classes subarranged by date only. If a work is classed in an area which is subarranged by date only, do not add another date to the call number. Instead, add a work letter starting with a to the date. Example:
CD1106 1918a, etc.
c. Classes subarranged by date and main entry. If a class is subarranged by date and main entry add the imprint date to the number. Follow this instruction even if a date appears as part of the classification number. Example:
Subject Cataloging Manual: Shelflisting
Copyright (c)2004 by the Library of Congress except within the USA.