TY  - BOOK
AU  - Gillett, Billy, E 
TI  - Introduction to operations research 
SN  - 0-07-099319-X 
U1  - 003 GIL  
PY  - 2001///
CY  - Tata mcgraw hill 
PB  - New Delhi 
KW  - OPERATION RESEARCH
ER  -