Crop yield from Illnois experiment fields in 1929
Bauer, F.C.
Crop yield from Illnois experiment fields in 1929 - Urbana 1930 - 1-368 p. - Crop, Yield, Experiment, Fields Illinois Agriculture Experiment Station. Bulletin No. 347 .
Crop yield from Illnois experiment fields in 1929 - Urbana 1930 - 1-368 p. - Crop, Yield, Experiment, Fields Illinois Agriculture Experiment Station. Bulletin No. 347 .