TY  - BOOK
ED  - Library of Congress.
TI  - USMARC format for holdings data: including guidelines for content designation 
SN  - 0844407003
PY  - 1989///-
CY  - Washington
PB  - Cataloging Distribution Service, Library of Congress
KW  - MARC formats
KW  - United States
KW  - Holdings (Bibliographic data)
KW  - Formatos MARC
KW  - Estados Unidos
KW  - Intercambio de información bibliográfica
N1  - Earlier ed. published under title: USMARC format for holdings and locations; Loose-leaf for updating; Includes bibliographical references
ER  -