APA-viite (7. p.)
ebrary, Inc, Mullin, S. J., & Seigel, R. A. (2009). Snakes: Ecology and conservation. Comstock Pub. Associates/Cornell University Press.
Chicago-viite (17. p.)
ebrary, Inc, Stephen J. Mullin, ja Richard A. Seigel. Snakes: Ecology and Conservation. Ithaca: Comstock Pub. Associates/Cornell University Press, 2009.
MLA-viite (9. p.)
ebrary, Inc, et al. Snakes: Ecology and Conservation. Comstock Pub. Associates/Cornell University Press, 2009.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.