Soil survey of the Napa area, California /
by E.J. Carpenter and Stanley W. Cosby.

APA Citation

Carpenter, E. J. (Eugene Johnson)., Cosby, S. Wallace., United States. Bureau of Chemistry and Soils. (1938). Soil survey of the Napa area, California. Washington, DC: U.S. Govt. Print. Off..

MLA Citation

Carpenter, E. J. (Eugene Johnson), 1892-, Stanley Wallace Cosby, and United States. Bureau of Chemistry and Soils. Soil Survey of the Napa Area, California. Washington, DC: U.S. Govt. Print. Off., 1938.

Warning: These citations may not always be complete (especially for serials).