00305nam a2200121Ia 4500008004100000100002100041245004400062260003200106300000900138650001400147942000700161999001500168190216s9999||||xx |||||||||||||| ||und||  aWilliam J Baumol 0aEconomic Theory And Operations Analysis  bPentice Hall Of Indiac1970  a606p  aEconomics  cBK  c9246d9246