00353nam a2200133Ia 45000030006000000080041000060400015000471000063000622450035001252500011001602600019001715460012001900050017002020STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aRichard Thoman, S.; Edgar Conkling, C.; Mourice Yeates, H.  aGeography of economic activity  aSecond  bMcgraw hillc0  aEnglish20220125165518.0