TY  - BOOK
AU  - Katz, Willaim A.
AU  - 
TI  - Introduction to reference book: basic information sources
U1  - 025.5 
PY  - 1974///
CY  - New York
PB  - McGraw-Hill
KW  - Reference services - Library
KW  - Information services
KW  - Electronic publishing
ER  -