United States. Bureau of Plant Industry. (1937). Steam sterilization of soil for tobacco and other crops. [s.n.].
Chicago Style (17th ed.) CitationUnited States. Bureau of Plant Industry. Steam Sterilization of Soil for Tobacco and Other Crops. [Washington]: [s.n.], 1937.
MLA (9th ed.) CitationUnited States. Bureau of Plant Industry. Steam Sterilization of Soil for Tobacco and Other Crops. [s.n.], 1937.
Warning: These citations may not always be 100% accurate.