The Online Books Page

Books by Ralph T. Roberts:

Books in the extended shelves:

• Roberts, Ralph T.: Hydrologic data for experimental agricultural watersheds in the United States, 1971 (Science and Education Administration, U.S. Dept. of Agriculture, in cooperation with state agricultural experiment stations, 1980), also by J. B. Burford, Jane L. Delashmutt, and United States. Science and Education Administration (page images at HathiTrust)
• Roberts, Ralph T.: Hydrologic data for experimental agricultural watersheds in the United States, 1972 (U.S. Dept. of Agriculture, Science and Education Administration, 1981), also by J. B. Burford, Jane L. Delashmutt, and United States. Science and Education Administration (page images at HathiTrust)
• Roberts, Ralph T.: Hydrologic data for experimental agricultural watersheds in the United States, 1978-79 (U.S. Dept. of Agriculture, Agricultural Research Service ;, 1989), also by J. L. Thurman and United States. Agricultural Research Service (page images at HathiTrust)
• Roberts, Ralph T.: Hydrologic data for experimental agricultural watersheds in the United States, 1980 (Dept. of Agriculture, Science and Education Administration : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1980), also by James B. Burford, Jane L. Deleshmutt, Beltsville Agricultural Research Center. Water Data Laboratory, and United States. Science and Education Administration (page images at HathiTrust)
• Roberts, Ralph T.: Retrieval procedures for hydrologic data from ARS experimental watersheds in the United States (REPHLEX) (U.S. Dept. of Agriculture, Agricultural Research Service, 1984), also by J. L. Thurman, J. B. Burford, and United States. Agricultural Research Service (page images at HathiTrust)

Find more by Ralph T. Roberts at your library, or elsewhere.