00304nam a2200121Ia 45000030006000000080041000060400015000471000018000622450064000802600009001445460012001530050017001650STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aGustavo Lagos  aInternational stratification and underdevelopment countries  c1963  aEnglish20220125165503.0