TY  - GEN
AU  - Urry , Syd
TI  - An introduction to operational research: the best of everything
SN  - 0002110016
U1  - 658.4034 
PY  - 1991///
CY  - Hyderabad
PB  - Orient Longman
KW  - OPERATIONAL RESEARCH
KW  - MANAGEMENTS
ER  -