Development and significance of great soil groups of United States.

Bibliographic Details
Corporate Author:	United States. Bureau of Chemistry and Soils
Format:	Government Document eBook
Language:	English
Published:	[Washington] : [s.n.], 1936.
Subjects:	Soil conservation. Maps. Bibliography.
Online Access:	Electronic resource (PDF)

Description
Item Description:	Includes illustrations, diagrams, and list of references.
Physical Description:	1 online resource (57 pages), digital, PDF file