00316nam a2200121Ia 4500082002200000100002000022245005800042260003200100300001600132500003600148500000500184700000500189  a658.4035bR569.ED  aRigge, James L.  aEconomic decision models for engineers and managersb  aNew YorkbMcGraw-Hillc1968  a401p. Index  a"International student edition"  a  a