Style de citation APA (7e éd.)

United States. Soil Conservation Service. (1963). Land of Washington. U.S. Dept. of Agriculture, Soil Conservation Service.

Style de citation Chicago (17e éd.)

United States. Soil Conservation Service. Land of Washington. [Portland, Or.: U.S. Dept. of Agriculture, Soil Conservation Service, 1963.

Style de citation MLA (8e éd.)

United States. Soil Conservation Service. Land of Washington. U.S. Dept. of Agriculture, Soil Conservation Service, 1963.

Attention : ces citations peuvent ne pas être correctes à 100%.