1. Biological terrorism targeted at agriculture: the threat to U.S. national security;Casagrande;The Nonproliferation Rev.,2000
2. The threat of plant pathogens as weapons against U.S. crops;Madden;Annu. Rev. Phytopathol.,2003
3. Biological Warfare Against Crops;Whitby,2002
4. American Phytopathological Society Public Policy Board. 2002. The American Phytopathological Society, first line of defense. APSnet. .
5. Food and Drug Administration, U.S. Department of Agriculture, and the Federal Bureau of Investigation. Undated. Criminal Investigation Handbook for Agroterrorism, U.S. Government Publication.