Whitney, M. (1909). Soils of the United States: Based upon the work of the Bureau of Soils to January 1, 1908. Govt. Print. Off..
MLA CitationWhitney, Milton. Soils of the United States: Based upon the Work of the Bureau of Soils to January 1, 1908. Govt. Print. Off., 1909.
Warning: These citations have been automatically generated and may not always be 100% accurate..