United States. Department of Agriculture. Office of the Secretary & Ross, W. H. (1914). Use of radioactive substances as fertilizers. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Department of Agriculture. Office of the Secretary and William Horace Ross. Use of Radioactive Substances as Fertilizers. Washington: U.S. GPO, 1914.
MLA (9th ed.) CitationUnited States. Department of Agriculture. Office of the Secretary and William Horace Ross. Use of Radioactive Substances as Fertilizers. U.S. GPO, 1914.
Warning: These citations may not always be 100% accurate.