APA

United States Departament of Agriculture U., . (1945). United State Department of Agriculture : Exp. Station Record. Washington: United States Departament of Agriculture.

Chicago

United States Departament of Agriculture Usda, . 1945. United State Department of Agriculture : Exp. Station Record. Washington: United States Departament of Agriculture.

Harvard

United States Departament of Agriculture U., . (1945). United State Department of Agriculture : Exp. Station Record. Washington: United States Departament of Agriculture.

MLA

United States Departament of Agriculture Usda, . United State Department of Agriculture : Exp. Station Record. Washington: United States Departament of Agriculture. 1945.