United States. Plant Disease Survey & United States. Bureau of Plant Industry. (1919). The Plant disease bulletin. Bureau of Plant Industry, United States Department of Agriculture.
Chicago Style (17th ed.) CitationUnited States. Plant Disease Survey and United States. Bureau of Plant Industry. The Plant Disease Bulletin. Beltsville, Md.: Bureau of Plant Industry, United States Department of Agriculture, 1919.
MLA (9th ed.) CitationUnited States. Plant Disease Survey and United States. Bureau of Plant Industry. The Plant Disease Bulletin. Bureau of Plant Industry, United States Department of Agriculture, 1919.
Warning: These citations may not always be 100% accurate.