Plant-quarantine import restrictions of the Republic of Colombia.
APA Citation
Hoyt, A. S., United States. Bureau of Entomology and Plant Quarantine. (1939). Plant-quarantine import restrictions of the Republic of Colombia. Washington, D.C.: U.S. Dept. of Agriculture, Bureau of Entomology and Plant Quarantine.
MLA Citation
Hoyt, Avery S, and United States. Bureau of Entomology and Plant Quarantine. Plant-quarantine Import Restrictions of the Republic of Colombia. Washington, D.C.: U.S. Dept. of Agriculture, Bureau of Entomology and Plant Quarantine, 1939.
Warning: These citations may not always be complete (especially for serials).