TY  - BOOK
ED  - Library of Congress.
ED  - National Library of Canada.
ED  - British Library.
TI  - MARC 21 format for authority data: including guidelines for content designation 
SN  - 0844409979
AV  - Z699.35 .M28 M323 2003
PY  - 2003///
CY  - Washington, D.C., Wash.
PB  - Cataloging Distribution Service, Library of Congress
KW  - MARC FORMATS
KW  - AUTHORITY FILES (INFORMATION RETRIEVAL)
KW  - DATA PROCESSING
N1  - "This is a loose-leaf publication intended to be kept up-to-date by the issuing of new and replacement pages.... It supersedes the March 1993 ed. and updates 1-2 of USMARC format for authority data and the 1988 ed. and amendments of Canadian MARCcommunication format: authorities"--T.p. verso; Includes bibliographical references
ER  -