00271nam a2200109Ia 4500008004100000041000800041082001400049100001600063245003300079260003000112300001900142241028s9999    xx            000 0 und d  aeng  a338.5 BEN  aLuis Bender  aEssentials Of Microeconomics  bWillford PressaUSAc2020  a229;. P. 24 cm