1. American Canine Foundation, 2002. Available at: http://legislation2002.tripod.com/washingtonanimalfoundationinc/ based upon annual APBT registration data from the United Kennel Club (http://www.ukcdogs.com/) and the American Dog Breeders Association (http://www.adba.cc/), the two largest registries for the APBT.
2. Enforcing legislative and regulatory injury prevention strategies. Hazard;Ashby,1998
3. Australian Companion Animal Council, 2003. Contribution of the pet care industry to the Australian economy (5th Ed.).
4. The ecology of dog bite injury in St. Louis, Missouri;Beck;Public Health Reports,1975
5. Beer, A., 2002. Man’s best friend or dangerous dog? [Radio] BBC. 1 July. Available at: http://news.bbc.co.uk/1/hi/programmes/4x4_reports/2077040.stm.