00259nam a2200109Ia 4500082002200000100001800022245005200040260003200092300001500124500000500139700000500144  a330.1543bC532.FM  aChiang, A. C.  aFundamental methods of mathematical economicsb  aNew YorkbMcGraw-Hillc1967  axiv, 690p.  a  a