(Q51384967)
Statements
Spring wheat in the Great Plains area : relation of cultural methods to production (English)
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Chilcott, E. C. (Ellery Channing),
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Burr, W. W. (William Wesley),
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Cole, John S. (John Selden),
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unknown value
U.S. Dept. of Agriculture
Washington, D.C.
1915
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