TY  - GEN
AU  - Singh, Gurdev
TI  - Information sources, services and systems
SN  - 9788120346390
U1  - 025.524 Si643i 
PY  - 2013///
CY  - Delhi
PB  - PHI Learning Private Limited
KW  - Information sources
KW  - Services and systems
KW  - Reference book
KW  - Retrieval system
ER  -