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By "Whitson, A. R. (Andrew R.), 1870-1945"
Notes on soils, an outline for an elementary course in soils, by A.R. Whitson ... H.L. Walster ...
By: Whitson, A. R. - Walster, Harlow L.
Publication info: Madison, Wis.,The authors[c1909]
Contributed by: Library of Congress