TY  - GEN
AU  - 
AU  - Ratger, John C., ed.
TI  - Conversion of retrospective catalogue records to machine-readable form: A study of the feasibility of a National Bibliographic Service
PY  - 1969///
CY  - Washington
PB  - Library of Congress
KW  - Catalogue Conversion
KW  - MARC
ER  -