TY  - BOOK
AU  - GUPTA, PREM KUMAR.
AU  -  HIRA, D. S.
TI  -  operations research : : Introduction / 
AV  - Q175 .C478
U1  - 658.4034 
PY  - 1986///
CY  - NEW DELHI
PB  - CHAND & COMPANY LTD, 
KW  - Operations research
KW  - Research, Industrial
ER  -