00389nam a2200133Ia 450000500170000000800410001702000220005805000220008010000210010224500710012325000090019426000330020365000190023620251229124737.0251229s9999    xx            000 0 und d  a978-0-07-234037-2  aHB 172. M33 2002   aMcConnell, C. R. 0aMicroeconomicsb principles, problems and policiescC. R McConnell  a15th  aNew Yorkb McGraw-Hillc2002  aMicroeconomics