Soil defense of range and farm lands in the Southwest
1939
Rowalt, E. M.
The Southwest, as considered in this publication, is a geographical region including all of Arizona and New Mexico. Some discussion of erosion conditions and corrective practices in use in Utah and western Colorado are also included. The whole area is a region of range lands and irrigated farming lands designated, for administrative purposes, Region 8 of the Soil Conservation Service.
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Издатель U.S. Dept. of Agriculture | Washington, D.C. : U.S. Dept. of Agriculture, 1939
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