Livres de soil resource management

Work of the E.C.W. soil erosion camps in Alabama, Mississippi, Oklahoma and Texas ...

Analyses of wind erosion phenomena in Roosevelt and Curry Counties, New Mexico

From ridge to river. United States Department of agriculture. Soil conservation service

1939 Agricultural conservation program. Proposed changes from the 1938 Agricultural conservation program

Memorandum for E.C.W. camps in Nebraska relative to terraces and other erosion control structures

Soil erosion and its prevention

Conservation in the Klickitat, using grasses and legumes