00315nam a2200133Ia 45000030006000000080041000060400015000471000018000622450053000802500010001332600009001435460012001520050017001640STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aKenneth Kelly  aAgricultural revolution in a third world economy  aFirst  c1985  aEnglish20220125165557.0