TY  - BOOK
AU  - Gupta, Prem K.
AU  - Hira, D. S.
TI  - Problems in operation research: : Principles and solutions
SN  - 81-219-0968-6
U1  - 658.5 
PY  - 2001///
CY  - New Delhi
PB  - S. Chand
KW  - Operation Research
ER  -