Soil survey, Zavala County, Texas
By: by Howard M. Smith ... [et al.].
Contributors: Smith, Howard Malcolm, 1900-; United States. Bureau of Plant Industry.; Texas Agricultural Experiment Station.
Series: U.S. Bureau of Plant Industry. [Soil survey report] ; series 1934 -- no. 21.
Publisher: U.S. Dept. of Agriculture, Bureau of Plant Industry : for sale by the Supt. of Docs., U.S. Govt. Print. Off.
Published: 1940
Place of publication: Washington
Language: eng
Number of pages: 40
Subjects: Soil surveys -- Texas -- Zavala County.; Soils -- Texas -- Zavala County -- Maps.
Genres: Maps.
Notes: Cover title.

In cooperation with the Texas Agricultural Experiment Station.