Books

Geist, V. Deer of the World. Mechanicsburg, PA: Stackpole Books, 1998.

Geist, V. Mountain Sheep. A Study in Behavior and Evolution. Chicago: University of Chicago Press, 1971.

Irwin, L. L. "Migration." In North American Elk: Ecology and Management, edited by Dale E. Toweill and Jack Ward Thomas. Washington, DC: Smithsonian Institution Press, 2QQ2.

Maddock, Linda. "The 'Migration' and Grazing Succession."

In Serengeti: Dynamics of an Ecosystem, edited by A. R. E.

Sinclair and M. Norton-Griffiths. Chicago: University of Chicago Press, 1979. Owen-Smith, R. N. Megaherbivores. Cambridge: Cambridge

University Press, 1988. Slijper, E. J. Whales. Ithaca, NY: Cornell University Press, 1979.

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