Circular /
U.S. Department of Agriculture, Bureau of Plant Industry.
APA Citation
Biodiversity Heritage Library., United States. Bureau of Plant Industry. (19081913). Circular. Washington, D.C.: U.S. Dept. of Agriculture, Bureau of Plant Industry.
MLA Citation
Biodiversity Heritage Library, and United States. Bureau of Plant Industry. Circular. Washington, D.C.: U.S. Dept. of Agriculture, Bureau of Plant Industry, 19081913.
Warning: These citations may not always be complete (especially for serials).