TY  - BOOK
ED  - Library of Congress.
ED  - National Library of Canada.
ED  - British Library.
TI  - MARC 21 format for classification data: including guidelines for content designation 
SN  - 0844410004
AV  - Z696 .A4 M323 2003
PY  - 2003///
CY  - Washington, D.C., Wash.
PB  - Cataloging Distribution Service, Library of Congress
KW  - CLASSIFICATION
KW  - BOOKS
KW  - DATA PROCESSING
KW  - MARC FORMATS
N1  - Rev. ed. of: USMARC format for classification data. 1990 ed. c1990; and, Canadian MARC communication format: classification data. 1992; Includes bibliographical references
ER  -