United States. Department of Agriculture. (1922). Atlas of American agriculture: Part II. Climate; section A, precipitation and humidity. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of Agriculture. Atlas of American Agriculture: Part II. Climate; Section A, Precipitation and Humidity. [Washington]: GPO, 1922.
MLA (9th ed.) CitationUnited States. Department of Agriculture. Atlas of American Agriculture: Part II. Climate; Section A, Precipitation and Humidity. GPO, 1922.
Warning: These citations may not always be 100% accurate.