00577nam a2200181Ia 4500001000500000005001700005008004100022020001500063082001200078100003000090245006400120250001200184260003300196300003200229650002500261999001500286952009400301164620261006003543.0120911s9999    xx            000 0 und d  a0256085390  a339 PET  aPeterson, Willis L.92564  aPrinciples of economics. Micro  / Willis L. PeteRed Sporton  a8th ed.  aHomewood, IL : Irwin, c1991.  axix, 396 p. : ill. ; 24 cm.  aMicroeconomics.9635  c1646d1646  00102ddc4170aNUbNUd2012-09-11l0o339 PETp691r2012-09-11 00:00:00w2012-09-11yOS