United States. Bureau of Plant Industry. (1920). Plant disease bulletin issued by Plant Disease Survey, supplement 11: Diseases of cotton, sugar cane, forest trees, ornamental and miscellaneous plants in U.S. in 1919. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Bureau of Plant Industry. Plant Disease Bulletin Issued by Plant Disease Survey, Supplement 11: Diseases of Cotton, Sugar Cane, Forest Trees, Ornamental and Miscellaneous Plants in U.S. in 1919. [Washington]: [publisher not identified], 1920.
MLA (9th ed.) CitationUnited States. Bureau of Plant Industry. Plant Disease Bulletin Issued by Plant Disease Survey, Supplement 11: Diseases of Cotton, Sugar Cane, Forest Trees, Ornamental and Miscellaneous Plants in U.S. in 1919. [publisher not identified], 1920.