Brandenburg, Jim. Face to Face with Wolves. New York: National Geographic Society, 2010. Print
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Masson, Jeffrey Moussaieff. Altruistic Armadillos, Zenlike Zebras: A Menagerie of 100 Favorite Animals. New York: Ballantine Books, 2006. Print.
McAllister, Ian. The Last Wild Wolves: Ghosts of the Great Bear Rainforest. Vancouver: Greystone Books, 2007. PDF E-Book.
Steinhart, Peter. The Company of Wolves. New York: Knopf Doubleday Pubishing Group, 1996. Print.