TY  - BOOK
AU  - Katz,William A.
TI  - Introduction to reference work
T2  - McGraw-Hill series in library education
U1  - 021 23
PY  - 1969///]
CY  - New York : 
PB  - McGraw-Hill , 
KW  - Reference services (Libraries) ; Reference books - Bibliography
N1  - Includes bibliographies
ER  -