TY  - BOOK
AU  - Hiller,Frederick S
AU  - Lieberman,Gerald J
TI  - Introduction yo operation management 
SN  - 9780070473874
U1  - 658.4034 
PY  - 2001///
CY  - New Delhi : 
PB  - Tata Mc Graw Hill , 
KW  - Operations research
ER  -