Duckworth, W.E.
Guide to operational research / W.E.Duckworth - London : Methuen ; 1962 - 145p.: ill.; 20 cm.
Operations research
330.183 / DUC
Guide to operational research / W.E.Duckworth - London : Methuen ; 1962 - 145p.: ill.; 20 cm.
Operations research
330.183 / DUC