The Online Books Page

Books by Clifford Willis:

Books in the extended shelves:

• Willis, Clifford: Alkali soils (Agricultural Experiment Station, South Dakota State College of Agriculture and Mechanic Arts, 1911), also by J. V. Bopp (page images at HathiTrust)
• Willis, Clifford: Corn (Agricultural Experiment Station, South Dakota State College of Agriculture and Mechanic Arts, 1910), also by H. B. Potter (page images at HathiTrust)
• Willis, Clifford: Progress in variety tests of alfalfa (Agricultural Experiment Station, South Dakota State College of Agriculture and Mechanic Arts, 1910), also by Bopp. J. V. (page images at HathiTrust)
• Willis, Clifford: Progress in variety tests of barley (Agricultural Experiment Station, South Dakota State College of Agriculture and Mechanic Arts, 1909), also by J. V. Bopp and South Dakota State College of Agriculture and Mechanic Arts. Agronomy Dept (page images at HathiTrust)
• Willis, Clifford: Progress in variety tests of oats (Agricultural Experiment Station, South Dakota State College of Agriculture and Mechanic Arts, 1908), also by South Dakota Agricultural Experiment Station (page images at HathiTrust)
• Willis, Clifford: Progress in wheat investigations (Agricultural Experiment Station, South Dakota State College of Agriculture and Mechanic Arts, 1911), also by W. L. Burlison (page images at HathiTrust)
• Willis, Clifford: Progress of grain investigations (South Dakota Agricultural Experiment Station, 1910), also by Manley Champlin (page images at HathiTrust)
• Willis, Clifford: Report of work for 1907 and 1908 at Highmore Substation (Agricultural Experiment Station, South Dakota State College of Agriculture and Mechanic Arts, 1909), also by South Dakota State College of Agriculture and Mechanic Arts. Agronomy Dept (page images at HathiTrust)

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