Guillemin, Jeanne. Biological Weapons: From the Invention of State-Sponsored Programs to Contemporary Bioterrorism, (Internet Archive), Columbia University Press, 2005, p. 108, (ISBN0231129424).
LeBaron, Wayne. America's Nuclear Legacy, (Google Books), Nova Publishers, 1998, p. 83–84, (ISBN1560725567).
Novick, Lloyd F. and Marr, John S. Public Health Issues Disaster Preparedness: Focus on Bioterrorism, (Google Books), Jones & Bartlett Publishers, 2003, p. 89, (ISBN0763725005).