TY  - BOOK
AU  - Gupta; Prem Kumar,Hira;D.S.
TI  - Operations research
SN  - 9788121902186
U1  - 001.424 G93O 
PY  - 2016///
CY  - New Delhi
PB  - S. Chand & Co.
KW  - Mathematics
ER  -