TY  - BOOK
AU  - Duckworth, W. E. and Others
AU  - Gear, A. E. ; jt. auth.
AU  - Lockett, A. G. ; jt. auth.
TI  - Guide to operational research
U1  - 658.4034 
PY  - 1977///
CY  - London
PB  - Chapman & Hall/CRC Press
N1  - "Science paperbacks"
ER  -