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1.	Analysis and interpretation of water-quality trends in major U.S. rivers, 1974-81 / by Richard A. Smith, Richard B. Alexander, and M. Gordon Wolm[...] Smith, Richard A., 1945-; Alexander, Richard B.; Wolman, M. Gordon, 1924-2010. Washington, DC : GPO, 1987. TD223 .S65 1987 \| Map It \| Detailed record - Similar records
2.	County-level estimates of nitrogen and phosphorus fertilizer use in the United States, 1945 to 1985 [microform] / by Richard B. Alexander and Ric[...] Alexander, Richard B.; Smith, Richard A.; Geological Survey (U.S.) Reston, Va. : U.S. Dept. of the Interior, U.S. Geological Survey ; Denver, Colo. : Books and Open-File Reports [Section, distributor], 1990. I 19.76: 90-130 \| Detailed record - Similar records
3.	Development of a computerized data base of permitted wastewater discharges in New Jersey / by Keith W. Robinson, Curtis V. Price, and Richard A. [...] Robinson, Keith W.; Price, Curtis V.; Smith, Richard A.; Geological Survey (U.S.) West Trenton, N.J. : U.S. Geological Survey ; Denver, CO : USGS Earth Science Information Center, Open-File Reports Section [distributor], 1995. I 19.76: 95-152 \| Detailed record - Similar records
4.	Pesticides in the nation's rivers, 1975-1980, and implications for future monitoring / by Robert J. Gilliom, Richard B. Alexander, and Richard A.[...] Gilliom, Robert J.; Alexander, Richard B.; Smith, Richard A., 1945- [Washington] : U.S.G.P.O. ; Alexandria, Va. : For sale by the distribution Branch, U.S. Geological Survey, 1985. TD427.P35 G55 1985 \| Map It \| Detailed record - Similar records
5.	Regional estimates of the amount of U.S. agricultural land located in watersheds with poor water quality [microform] / by Richard A. Smith, Grego[...] Smith, Richard A.; Schwarz, Gregory E. (Gregory Evans), 1954-; Alexander, Richard B.; [...] Reston, Va. : U.S. Geological Survey ; [Denver, CO : USGS Earth Science Information Center, Open-File Reports Section, distributor], 1994. I 19.76: 94-399 \| Detailed record - Similar records
6.	The frontier States: Alaska, Hawaii, by Richard Austin Smith and the editors of Time-Life Books. Smith, Richard Austin, 1911-2003.; Time-Life Books. New York, Time-Life Books [1968] F910 .S6 \| Map It \| Detailed record - Similar records

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