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  1. Estimation of colloidal material in soils by adsorption /
    By: Gile, P. L.
    Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1924.
    Contributed by: U.S. Department of Agriculture, National Agricultural Library
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  2. Relation of calcareous soils to pineapple chlorosis.
    By: Gile, P. L.
    Publication info: Washington,Govt. print. off.,1911.
    Contributed by: Library of Congress
    BHL Collections: Library of Congress
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