00362nam a2200133 a 4500008004100000050001700041100001900058245005600077260003200133300001900165350000900184650001500193650002000208120416s1968    ||||||||||||||||| ||    u  aHD 69.D4 Rig  aRiggs, James L10aEconomic decision models for engineers and managers  aNew YorkbMcGraw-Hillc1968  a(9) 401p : ill  a0.00 0aMANAGEMENT 0aDECISION MAKING