United States. Bureau of Plant Industry. (1938). Winter wheat and sorghum production in southern Great Plains under limited rainfall. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Plant Industry. Winter Wheat and Sorghum Production in Southern Great Plains Under Limited Rainfall. [Washington]: [s.n.], 1938.
MLA (9th ed.) CitationUnited States. Bureau of Plant Industry. Winter Wheat and Sorghum Production in Southern Great Plains Under Limited Rainfall. [s.n.], 1938.
Warning: These citations may not always be 100% accurate.