The plant disease bulletin.
Supplement.
APA Citation
United States. Plant Disease Survey., United States. Bureau of Plant Industry. (1919). The plant disease bulletin. Beltsville, Md.: Bureau of Plant Industry, U.S. Dept. of Agriculture.
MLA Citation
United States. Plant Disease Survey, and United States. Bureau of Plant Industry. The Plant Disease Bulletin. Beltsville, Md.: Bureau of Plant Industry, U.S. Dept. of Agriculture, 1919.
Warning: These citations may not always be complete (especially for serials).