Our productive land :
we can conserve and improve it while using it /
by the Soil Conservation Service.

APA Citation

United States. Department of Agriculture., United States. Soil Conservation Service. (1955). Our productive land: we can conserve and improve it while using it. Slightly revised August 1955. Washington, D.C.: U.S. Dept. of Agriculture, Soil Conservation Service.

MLA Citation

United States. Department of Agriculture, and United States. Soil Conservation Service. Our Productive Land: We Can Conserve And Improve it While Using It. Slightly revised August 1955. Washington, D.C.: U.S. Dept. of Agriculture, Soil Conservation Service, 1955.