TY  - BOOK
AU  - Gupta,Prem Kumar
AU  - Hira,D S  .
TI  - Operations research : for engineering, computer science, commerce and management.................Gupta / 
SN  - 8121902819
U1  - 003 
PY  - 2014///
CY  - New Delhi : 
PB  - S Chand , 
KW  - OPERATIONS RESEARCH
N1  - Includes bibliography and index
ER  -