TY  - BOOK
AU  - Katz, William A
TI  - Introduction reference work
U1  - 025.52 21st
PY  - 1974///
CY  - New York
PB  - McGraw Hill
KW  - Reference services (Libraries); Reference books
N1  - Contents: v.1. Basic information source -v.2. Reference services and reference processes
ER  -