Preliminary color standards and color names for soils - Rice, Thomas D. (Thomas Donnelly), 1878-1939. (Washington, D.C. : U.S. Dept. of Agriculture, 1941)
Caption title.
Joint contribution from Bureau of Plant Industry, Agricultural Marketing Service and Soil Conservation Service.
"Soil color name charts" (1 p. l., 8 leaves of mounted color samples) in pocket.
Bibliography: p. 11-12.
Keywords: Soils -- Color