TY  - BOOK
AU  - Gupta, Kumar Prem
AU  - Hira, D. S.
TI  - Problems in operations research: Principles and solutions
SN  - 9788121909686
AV  - T 57.6 .G87 1991
PY  - 1991///
CY  - New Delhi
PB  - S. Chand & Company Ltd.
KW  - Operations research
ER  -