Evaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania : hydrology of a small carbonate site near Ephrata, Pennsylvania, prior to implementation of nutrient management / by Edward H. Koerkle ... [et al.] ; prepared in cooperation with the Pennsylvania Department of Environmental Protection. Rev. May 1997. (Water-quality study of the Conestoga River Headwaters, Pennsylvania) (Water-resources investigations report ; 93-4173)
Evaluation of agricultural best-management practices in the Conestoga River Headwaters, Pennsylvania : hydrology of a small carbonate site near Ephrata, Pennsylvania, prior to implementation of nutrient management / by Edward H. Koerkle ... [et al.] ; prepared in cooperation with the Pennsylvania Department of Environmental Protection.
Rev. May 1997.
(Water-quality study of the Conestoga River Headwaters, Pennsylvania) (Water-resources investigations report ; 93-4173)
国立国会図書館請求記号
NA217-A446
国立国会図書館書誌ID
000003259917
資料種別
図書
著者
Koerkle, Edward H.
出版者
U.S. Dept. of the Interior, U.S. Geological Survey