TY  - BOOK
AU  - Ali,Amjad
TI  - Reference service and the digital sources of information / 
SN  - 8170004128
U1  - 025.52 
PY  - 2004///
CY  - New Delhi : 
PB  - Ess Ess Publications , 
KW  - REFERENCE SERVICE
N1  - Include index
ER  -