Crop yields from Illinois soil experiment fields in 1928
Bauer, F.C.
Crop yields from Illinois soil experiment fields in 1928 - Urbana 1929 - 212-238 p. - Soil, Experiment Illinois Agricultural Experiment Station. Bulletin No. 327 .
Crop yields from Illinois soil experiment fields in 1928 - Urbana 1929 - 212-238 p. - Soil, Experiment Illinois Agricultural Experiment Station. Bulletin No. 327 .