TY  - BOOK
AU  - Gupta,Prem Kumar, Hira, D. S.
AU  - x
TI  - Problems in operations research (principles in solutuions): x
SN  - 8121909686
U1  - 658.4034/G977p 
PY  - 1998///
CY  - New Delhi
PB  - S. Chand
KW  - Operations research - Problems exercises, etc
N1  - x
ER  -