00345nam a2200121 a 450000500170000002000150001708200180003210000220005024500600007226000400013230000240017263000270019620251202164126.0  a0946536902  a330.0724bCLE  aClements, David L  aIntroduction to mathematical model in economic dynamics  aOxfordbNorth Oxford academicc1984  a169 p.b, 22cm.cHB  aMathematical economics