"Impact of U.S. Agricultural Policy on Regional Nitrogen Losses"


P.W. Gassman, J. Wu, P.D. Mitchell, B.A. Babcock, Terry M. Hurley and S.W. Chung


In 3rd Internatonal Conference on Diffuse Pollution, Edinburgh, Scotland, 31 August - 4 September 1998, International Association on Water Quality, (Edinburgh, Scotland: Scottish Environment Protection Agency (SEPA), 1998), pp. 115-122