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Relation of land use to nitrogen concentration in ground water in the Patuxent River Basin, Maryland /
by E. Randolph McFarland ; prepared in cooperation with the Maryland Department of the Environment.

APA Citation

McFarland, E. Randolph., Geological Survey (U.S.)., Maryland. Dept. of the Environment. (1995). Relation of land use to nitrogen concentration in ground water in the Patuxent River Basin, Maryland. Towson, Md.: U.S. Dept. of the Interior, U.S. Geological Survey .

MLA Citation

McFarland, E. Randolph, Geological Survey (U.S.), and Maryland. Dept. of the Environment. Relation of Land Use to Nitrogen Concentration In Ground Water In the Patuxent River Basin, Maryland. Towson, Md.: U.S. Dept. of the Interior, U.S. Geological Survey , 1995.

Warning: These citations may not always be complete (especially for serials).