Lowrance, Richard; Altier, Lee S.; Newbold, J. Denis; Schnabel, Ronald R.; Groffman, Peter M.; Denver, Judith M.; Correll, David L.; Gilliam, J. Wendell; Robinson, James L.; Brinsfield, Russell B.; Staver, Kenneth W.; Lucas, William; Todd, Albert H.
(U. S. Environmental Protection Agency, 1995)
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