TY  - BOOK
AU  - YEWDALL, G.A
AU  - WICKS, C.T
TI  - Operational Research
SN  - 0715354140
U1  - 001.42 4 YEW 
PY  - 1971///
CY  - Newton Abbot
PB  - DAVID & CHARLES
KW  - Operational Research
N1  - Icluding Index, Appendices
ER  -