TY  - BOOK
AU  - Gupta, Prem Kumar
AU  - Shira, D.S.
TI  - Problems in Operations Research: principles and solutions
SN  - 8121909686
AV  - T57.6 .G97 1991
PY  - 1991///
CY  - New Delhi
PB  - S. Chand & Company
KW  - Operations research
ER  -