- Gilroy, Henry, and Bill Morrison. Wolf & Red. Milwaukie, OR: Dark Horse Comics, 1995. Print.
- "Red Wolf | Basic Facts About Red Wolves | Defenders of Wildlife." Defenders of Wildlife | Protecting Native Animals and Their Habitats. N.p., n.d. Web. 13 Dec. 2012. <http://www.defenders.org/red-wolf/basic-facts>.
- "Wolf Facts." California Wolf Center. N.p., n.d. Web. 11 Dec. 2012. <http://www.californiawolfcenter.org/learn/wolf-facts/>.