TY  - BOOK
AU  - Gupta, P.K. / D.S. Hira 
TI  - Problems in Operations Research [RES]
SN  - 81-219-0968-6
PY  - 2005///
CY  - New Dilhi, India
PB  - S. Chand & Company Ltd
KW  - 1.Operations Research
ER  -