TY  - BOOK
ED  - Network Development and MARC Standards Office
TI  - USMARC Specifications for Record Structure, Character Sets, Tapes
SN  - 8444405973
U1  - 025.316 
PY  - 1990///
CY  - Washington
PB  - Library of Congress, 
KW  - MARC formats
KW  - Định dạng Marc
ER  -