APA (7th ed.) Citation

NetLibrary, Inc, Thoney, D. A., Schlager, N., & Hutchins, M. (2004). Grzimek's animal life encyclopedia (2nd ed.). Thomson Gale.

Chicago Style (17th ed.) Citation

NetLibrary, Inc, Dennis A. Thoney, Neil Schlager, and Michael Hutchins. Grzimek's Animal Life Encyclopedia. 2nd ed. Detroit: Thomson Gale, 2004.

MLA (9th ed.) Citation

NetLibrary, Inc, et al. Grzimek's Animal Life Encyclopedia. 2nd ed. Thomson Gale, 2004.