TY  - BOOK
AU  - Gupta, Prem Kumar
AU  - I. Hira, D. S.
TI  - Problems in operations research : principles and solutions
SN  - "81-219-0968-6"
AV  - T57.6 .G87
PY  - 1991///
CY  - Ram Nagar, New Delhi
PB  - S.Chand & Co. Ltd.
KW  - 1.Operations research
KW  - "N"
N1  - "N"
ER  -