Soils of the United States, based upon the work of the Bureau of Soils to January 1, 1908.
By Milton Whitney ...
- Washington, Govt. Print. Off., 1909.
- 243 p. incl. map. fold. map, diagrs. 23 cm.
- United States. Bureau of Soils. Bulletin 55 .
- United States. Bureau of Soils. Bulletin ; 55. .
agr09000590
Soil surveys--United States. Soils--Classification.