The Online Books Page

Books by Lyman S. Willardson:

Books in the extended shelves:

• Willardson, Lyman S.: Inspecting and cleaning subsurface drain systems (U.S. Dept. of Agriculture, 1975), also by L. B. Grass and A. J. MacKenzie (page images at HathiTrust)
• Willardson, Lyman S.: Irrigation management affecting quality and quantity of return flow (Ada, Oklahoma : Robert S. Kerr Environmental Research Laboratory, Office of Research and Development, U.S. Enivironmental Protection Agency, 1976., 1976), also by R. J. Hanks, United States. Environmental Protection Agency. Office of Research and Development, and Robert S. Kerr Environmental Research Laboratory (page images at HathiTrust)
• Willardson, Lyman S.: Irrigation water quality evaluation (Utah State University, 1975), also by Jerald Emmet Christiansen, Edwin C. Olsen, and Utah State University. Agricultural and Irrigation Engineering Dept (page images at HathiTrust)

Find more by Lyman S. Willardson at your library, or elsewhere.