TY  - BOOK
AU  - Gupta, Prem Kumar
AU  - Hira, D. S.
TI  - Introduction to operations research
SN  - 81-219-0810-8
U1  - 003 
PY  - 1995///
CY  - New Delhi
PB  - S. Chand
KW  - Graphical method
KW  - Inventory control
KW  - Opration research
N1  - Includes index
ER  -