T. Cowan, “The Animal Welfare Act: Background and Selected Animal Welfare Legislation,” Congressional Research Service, 2013.
148
United States Code, 2013 edition, Chapter 54, “Transportation, Sale, and Handling of Certain Animals,” https://www.gpo.gov/fdsys/pkg/USCODE-2013-title7/html/USCODE-2013-title7-chap54.htm.
