Soil and water conservation in the United States =
La conservation du sol et de l'eau aux Etats-Unis.

APA Citation

United States. Soil Conservation Service. (1950). Soil and water conservation in the United States =: La conservation du sol et de l'eau aux Etats-Unis. [Washington.

MLA Citation

United States. Soil Conservation Service. Soil And Water Conservation In the United States =: La Conservation Du Sol Et De L'eau Aux Etats-Unis. [Washington, 1950.

Warning: These citations may not always be complete (especially for serials).