United States. Department of Agriculture. Office of the Secretary & Letteer, C. R. (1914). Experiments in crop production on fallow land at San Antonio. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of Agriculture. Office of the Secretary and C. R. Letteer. Experiments in Crop Production on Fallow Land at San Antonio. Washington: U.S. GPO, 1914.
MLA (9th ed.) CitationUnited States. Department of Agriculture. Office of the Secretary and C. R. Letteer. Experiments in Crop Production on Fallow Land at San Antonio. U.S. GPO, 1914.
Warning: These citations may not always be 100% accurate.