Soil defense in the Pacific Southwest
- Source:
- Farmers' bulletin / United States Department of Agriculture ; no. 1848 1940
- Year:
- 1940
- Subject:
- Soil conservation -- California, Soil conservation -- Nevada, and soil conservation
- Format:
- 55 p. : ill., map ; 23 cm.
- Language:
- English
- Publisher:
- U.S. Dept. of Agriculture
- Collection:
- Organic Roots Collection