00309    a2200109   4500020001800000082002000018100002200038245004900060260003400109300002000143650003600163  a9780631180562  a330.015118bOST  aOstaszewski, Adam  aMathematics in economicsbmodels and methods  aOxfordbBlackwellc1993g1993  axix,508p.c24cm  aEconomics - Mathematical models