1806
1807
Katz, William Armstrong
4291-
Introduction to reference work
New York
McGraw-Hill
]1969[
2v
McGraw-Hill series in library education
Includes bibliographies
]by[ William A. Katz
R
v.1. Basic information sources. -v.2. Reference services
، Reference services )Libraries(
، Reference books
Z
711
.
K32
AU
TI
CL
CL
