TY  - BOOK
AU  - Kumar,Suseela  .
TI  - Changing concept of reference services / 
SN  - 0706903021
U1  - 025.52 
PY  - 1974///
CY  - Delhi : 
PB  - Vikas Publishing House , 
KW  - REFERENCE SERVICES
N1  - Includes index
ER  -