1. Alaska Epidemiology Office. 1986. Epidemiology Bulletin No. 9: Ferrets—A New Menace To Health; Public Health Warning. Alaska Division of Public Health, Anchorage, AK, USA.
2. Alterio, N., and H. Moller. 1997. Diet of feral house cats Felis catus, ferrets Mustela furo and stoats M. erminea in grassland surrounding yellow-eyed penguin Megadyptes anitpodes breeding areas, South Island, New Zealand. Journal of Zoology, London 243:869–877.
3. American Pet Products Association, Inc. 2010. 2009–2010 APPA National Pet Owners Survey. American Pet Products Association, Inc., Greenwich, CT, USA.
4. American Veterinary Medical Association (AVMA). 2007. U.S. Pet Ownership and Demographics Sourcebook. American Veterinary Medical Association, Schaumburg, IL, USA.
5. Anderson, E. 1989. The phylogeny of mustelids and the systematics of ferrets. Pages 10–20 in U. S. Seal, E. T. Thorne, M. A. Bogan, and S. H. Anderson, editors. Conservation Biology and the Black-footed Ferret. Yale University Press, New Haven, CT, USA.