The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.

References

  • Grzimek, B. 1990. Grizmek's Encyclopedia of Mammals. New York: McGraw-Hill.
  • Huffman, B. January 25, 2003. "The Ultimate Ungulate: Four-horned Antelope, Chousingha" (On-line). Accessed March 7, 2003 at http://www.ultimateungulate.com/4hantelope.html.
  • Macdonald, D. 1984. The Encyclopedia of Mammals. New York: Facts on File Publications.
  • Nowak, R. 1995. "Walker's Mammals of the World Online" (On-line). Accessed October 25, 2001 at http://press.jhu.edu/books/walker/artiodactyla.bovidae.tetracerus.html.
  • Nowak, R. 1999. Walkers Mammals of the World, Sixth Edition. Baltimore and London: The Johns Hopkins University Press.
  • Richard Weigl (2005) Longevity of Mammals in Captivity; from the Living Collections of the World. Kleine Senckenberg-Reihe 48: Stuttgart.
  • Wilson, Don E., and DeeAnn M. Reeder, eds. 1993. Mammal Species of the World: A Taxonomic and Geographic Reference, 2nd ed., 3rd printing. xviii + 1207
  • Wilson, Don E., and F. Russell Cole. 2000. Common Names of Mammals of the World. xiv + 204

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