TY  - BOOK
AU  - White, Douglas 
AU  - Donaldson, William
AU  - Lawrie, Norman
TI  - Operational research techniques [vol.1-2]
U1  - 001.424 
PY  - 1969///, 1974
CY  - London
PB  - Business Books
KW  - Operations Research
N1  - Contents :v. 1. An introduction -- v.2
ER  -