United States. Bureau of Plant Industry. (1919). Plant disease bulletin issued by Plant Disease Survey, supplement 6: Crop losses from plant diseases, 1918. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Bureau of Plant Industry. Plant Disease Bulletin Issued by Plant Disease Survey, Supplement 6: Crop Losses from Plant Diseases, 1918. [Washington]: [publisher not identified], 1919.
MLA (9th ed.) CitationUnited States. Bureau of Plant Industry. Plant Disease Bulletin Issued by Plant Disease Survey, Supplement 6: Crop Losses from Plant Diseases, 1918. [publisher not identified], 1919.
Warning: These citations may not always be 100% accurate.