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2. American Veterinary Medical Association. (1997). U.S. pet ownership and demographics sourcebook.Schaumburg, lL: American Veterinary Medical Association, Center for Information Management.
3. Arkow, P. (1 993). New statistics challenge previously held beliefs about euthanasia. The Latham Letter, 14, 10-11.
4. Arkow, P. & Clifton, M. (1 993). Where the figure of five million animals euthanized comes from. Animal People, Z(8). 3-5.