The Online Books Page

Books by John R. Gray:

Books in the extended shelves:

• Gray, John R., 1951-: Comparability of suspended sediment concentration and total suspended solids data (U.S. Dept. of the Interior, U.S. Geological Survey ;, 2000), also by Geological Survey (U.S.) (page images at HathiTrust)
• Gray, John R., 1951-: Proceedings of the Federal Interagency Workshop on Turbidity and Other Sediment Surrogates, April 30-May 2, 2002, Reno, Nevada (U.S. Geological Survey, 2002), also by Nev.) Federal Interagency Workshop on Turbidity and Other Sediment Surrogates (2002 : Reno, G. Douglas Glysson, Geological Survey (U.S.), and Federal Interagency Subcommittee on Sedimentation (U.S.) (page images at HathiTrust)
• Gray, John R., 1951-: Runoff, sediment transport, and water quality in a northern Illinois agricultural watershed before urban development, 1979-81 (U.S. Geological Survey, 1984), also by Howard E. Allen, Geological Survey (U.S.), and Illinois. Division of Water Resources (page images at HathiTrust)
• Gray, John R., 1951-: Techniques for computing discharge at four navigation dams on the Illinois and Des Plaines Rivers in Illinois (U.S. Dept. of the Interior, U.S. Geological Survey ;, 1991), also by Dean M. Mades, Linda S. Weiss, Geological Survey (U.S.), and United States. Army. Corps of Engineers. Rock Island District (page images at HathiTrust)

Find more by John R. Gray at your library, or elsewhere.