TY  - GEN
AU  - Gupta, Prem Kumar
AU  - Hira, D.S.
TI  - Operations research
SN  - 8121902819
U1  - 658.4034 
PY  - 1976///
CY  - New Delhi
PB  - S. Chand
KW  - MANAGEMENT
KW  - OPERATIONS RESEARCH
ER  -