00498nam a2200193 a 45000010005000000030009000050080041000140200015000550400028000700820015000981000025001132450040001382600056001783000014002346500012002486500015002606500014002756500015002899216CO-ViMGA141112s2004 ck r 000 u spa d a9682612969 aCO-ViMGAbspacCO-ViMGA04a338.5 S3751 aSchotter , Andrew R.10aMicroeconomía un enfoque moderno. aMexico : bcompañia editorial Continental, c1996 a700p : il14aDEMANDA14aEconomía14aMONOPOLIO14aOLIGOPOLIO