"HHS select agents and toxins". Code of Federal Regulations (CFR), Title 42, Part 73 (Volume 77, Number 194) - Public Health. Office of the Federal Register. Retrieved 11 July 2013.
"HHS select agents and toxins"(PDF). Code of Federal Regulations (CFR), Title 42 - Public Health. Office of the Federal Register. Archived from the original(PDF) on 20 October 2013. Retrieved 11 July 2013.
"HHS select agents and toxins"(PDF). Code of Federal Regulations (CFR), Title 42 - Public Health. Office of the Federal Register. Archived from the original(PDF) on 20 October 2013. Retrieved 11 July 2013.
wisc.edu
botit.botany.wisc.edu
"Coccidioides immitis". Tom Volk's Fungus of the Month. Tom Volk's Fungi. Retrieved 11 July 2013.