Agricultural chemicals in ground and surface water in a small watershed in Clayton County, Iowa, 1988-91 / by Stephen J. Kalkhoff and Bryan D. Schaap ; prepared in cooperation with Iowa Department of Natural Resources (Geological Survey Bureau). (Water-resources investigations report ; 95-4158)
Agricultural chemicals in ground and surface water in a small watershed in Clayton County, Iowa, 1988-91 / by Stephen J. Kalkhoff and Bryan D. Schaap ; prepared in cooperation with Iowa Department of Natural Resources (Geological Survey Bureau).
(Water-resources investigations report ; 95-4158)
国立国会図書館請求記号
ME354-A67
国立国会図書館書誌ID
000003250297
資料種別
図書
著者
Kalkhoff, Stephen J.ほか
出版者
U.S. Dept. of the Interior, U.S. Geological Survey