00295nam a2200121Ia 45000030006000000080041000060400015000471000019000622450037000812600026001185460012001440050017001560STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aGraham Hullett  aEconomics of agricultural policy  bBasil Blackwellc1971  aEnglish20220125165554.0