Biodiversity Heritage Library
By "Sears, Ogle Hesse, 1892-1977"
Soybeans : their effect on soil productivity / [by O.H. Sears].
By: Sears, Ogle Hesse,
Publication info: Urbana, Ill. :University of Illinois Agricultural Experiment Station,1939.
Contributed by: University Library, University of Illinois Urbana Champaign