00303nam a2200109Ia 4500008004100000040002500041082001400066100002200080245004500102260003800147300000800185230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a338.5 M31  aMansfield , Edwin 0aMicroeconomics : Theory and applications  bW.W. Norton & Company, Inc.c1970  a478