Relation of nitrogen and phosphorus in ground water to land use in four subunits of the Potomac River Basin.

Bibliographic Details
Main Author:	Ator, Scott W.
Corporate Authors:	National Water-Quality Assessment Program (U.S.), Geological Survey (U.S.)
Other Authors:	Denis, Janet M.
Format:	Government Document Book
Language:	English
Published:	Baltimore, Md. : U.S. Dept. of the Interior, U.S. Geological Survey ; 1997.
Series:	Water-resources investigations report ; 96-4268.
Subjects:	Groundwater > Pollution > Potomac River Region. Nitrates > Environmental aspects > Potomac River Region. Nutrient pollution of water > Potomac River Region.

Evans: US Documents (Annex 5th floor)