United States. Bureau of Plant Industry. (1938). Conservation and use of soil moisture at Mandan, N. Dak. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Plant Industry. Conservation and Use of Soil Moisture at Mandan, N. Dak. [Washington]: [s.n.], 1938.
MLA (9th ed.) CitationUnited States. Bureau of Plant Industry. Conservation and Use of Soil Moisture at Mandan, N. Dak. [s.n.], 1938.
Warning: These citations may not always be 100% accurate.