TY  - BOOK
AU  - Gupta,Prem Kumar
AU  - Hira,D.S.
TI  - Operations Research
SN  - 8121902819
U1  - 003 22
PY  - 1979///
CY  - New Delhi
PB  - S. Chand & company
KW  - Operations Research
N1  - Includes bibliographyand index
ER  -