00796nam0 22002771i 450 99000728256040332120200430112454.004121237030412135000Paperback00072825620021010d1977----km-y0itay50------baengGB<<A >>guide to operational research $f W. E. Duckworth, A. E. Gear, A. G. LockettLondonChapman and Hall1977Duckworth,Walter Eric55000Lockett,A. G784034Gear,A. E.441284ITUNINARICAUNIMARCBK990007282560403321XV I 381533XV I 38DTEDTEGuide to operational research1742270UNINAGEN01