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

References

• 2008. "IUCN Red List of Threatened Species" (On-line). Accessed November 17, 2008 at http:// www.iucnredlist.ord.
• Banks, R. C., R. W. McDiarmid, A. L. Gardner, and W. C. Starnes. 2003. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada
• Banks, R. C., R. W. McDiarmid, and A. L. Gardner. 1987. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada. Resource Publication, no. 166. 79
• Bernhard Grzimek (1990) Grzimek's Encyclopedia of Mammals. McGraw-Hill: New York.
• Danell, K., T. Willebrand, L. Baskin. 1998. Mammalian herbivores in the boreal forests: their numerical fluctuations and use by man.. Conservation Ecology, 2(2): 9. Accessed November 15, 2008 at http://www.consecol,org/vol2/iss2/art9.
• Franken, R., D. Hik. 2004. Influences of habitat quality, patch size, and connectivity on colonization and extinction dynamics of collared pikas Ochotona collaris. Journal of Animal Ecology, 73: 889-896.
• Koh, S., D. Hik. 2007. Herbivory meditates grass-endophyte relationships. Ecology, 88(11): 2752-2757.
• Krajick, K. 1998. Nunataks. National Geographic, December: 62-71.
• Morrsion, S. 2006. Foraging ecology and population dynamics of collared pikas in southwestern Yukon.. Arctic, 59(1): 104-107.
• Original description: Nelson, E.W., 1893.  Description of a new species of Lagomys from Alaska, p. 117.  Proceedings of the Biological Society of Washington, 8:117-120.
• Smith, A. 2008. Lagomorph Biology: Evolution, Ecology, and Conservation. Berlin Heidelberg: Springer-Verlag. Accessed November 15, 2008 at http://www.springerlink.com/content/n5m1687741615687/.
• Smith, A., N. Formozov, R. Hoffmann, Z. Changlin, M. Erbajeva. 1990. The Pikas. Pp. 14-26 in J Chapman, J Flux, eds. Rabbits, Hares and Pikas. Gland, Switzerland: International Union for Conservation of Nature and Natural Resources.
• Type: Nelson, E. W. 1893 Dec 21. Proc. Biol. Soc. Wash. 8: 117.
• 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 DeeAnn M. Reeder, eds. 2005. Mammal Species of the World: A Taxonomic and Geographic Reference, 3rd ed., vols. 1 & 2. 2000
• Wilson, Don E., and F. Russell Cole. 2000. Common Names of Mammals of the World. xiv + 204
• Wilson, Don E., and Sue Ruff, eds. 1999. The Smithsonian Book of North American Mammals. xxv + 750