TY  - BOOK
AU  - Katz, William A.
TI  - Introduction To Reference Work (5th Ed.)  :  Reference service and reference 
SN  - 0-07-033538-9
U1  - 025.52 Kat-Int 
PY  - 1987///
CY  - New York
PB  -  Mcgraw Hill Inc
KW  - Library Science, Reference Service, Reference Work
ER  -