TY  - BOOK
AU  - Gupta,Prem Kumar
AU  - Mohan,Man
TI  - Problems in operations research : ( principles and solutions) / 
U1  - 003 
PY  - 1991///
CY  - New Delhi : 
PB  - S Chand , 
KW  - OPERATION RESEARCH
N1  - NULL
ER  -