00319nam a2200121Ia 45000030006000000080041000060400015000471000044000622450045001062600017001515460012001680050017001800STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aUnited States Department of Agriculture  aManual on conservation of soil and water  bOxfordc1964  aEnglish20220125170335.0