Baker, Christopher P. "Requiem for a Heavyweight." National Wildlife 27(4), June-July 1989, pp. 38-42.

Banfield, A.W. The Mammals of Canada. Buffalo, New York: University of Toronto Press, 1974, pp. 362-365.

Fay, Francis H. Ecology and Biology of the Pacific Walrus, Odobenus rosmarus divergens Illiger. North American Fauna (74). Washington D.C.: U.S. Department of the Interior, Fish and Wildlife Service, 1982.

Fay, Francis H., Brendan P. Kelly, and John L. Sease. "Managing the Exploitation of Pacific Walruses: A Tradegy of Delayed Response and Poor Communication." Marine Mammal Science 5(1), pp. 1-16.

Haley, Delphine, ed. Marine Mammals. Seattle: Pacific Search Press, 1978, pp. 178-183.

Harrison, R.J. and Judith E. King. Marine Mammals. London: Hutchinson & Co., Ltd., 1980, pp. 100-149.

King, Judith E. Seals of the World. Ithaca, New York: Comstock Publishing Associates, 1983.

Maxwell, Gavin. Seals of the World. Boston: Houghton Mifflin Co., 1967.

Nowak, Ronald M. Walker's Mammals of the World. 5th edition. Volume 2. Baltimore: Johns Hopkins University Press, 1991, pp. 1244-47.

Perry, Richard. The World of the Walrus. New York: Taplinger Publishing Company, 1968.

Ray, G. Carleton and M.G. McCormick-Ray. Wildlife of the Polar Regions. New York: Harry N. Abrams, Inc., 1981.

Reeves, Randall R., Brent S. Stewart, and Stephen Leatherwood. The Sierra Club Handbook of Seals and Sirenians. San Francisco: Sierra Club Books, 1992.

Renouf, Deane, ed. The Behavior of Pinnipeds. New York: Chapman and Hall, 1991.

Ridgway, Sam H., ed. Mammals of the Sea, Biology and Medicine. Springfield, Illinois: Charles C. Thomas, Publisher, 1972.

Ridgway, Sam H. and Richard J. Harrison, eds. Handbook of Marine Mammals Vol 1. The Walrus, Sea Lions, Fur Seals and Sea Otter. New York: Academic Press, 1981.

Reidman, Marianne. The Pinnipeds: Seals, Sea Lions, and Walruses. Berkeley: University of California Press, 1990.

Scammon, Charles M. The Marine Mammals of the Northwestern Coast of North America. New York: Dover Publications, Inc., 1968, pp. 176-181.

Scheffer, Victor B. Seals, Sea Lions and Walruses, a Review of the Pinnipedia. Stanford, California: Stanford University Press, 1958.