APA-referens

Bowman, W. D., Cain, M. L., & Hacker, S. D. (2011). Ecology (Second.).

Chicago-stil citat

Bowman, William D., Michael L. Cain, och Sally D. Hacker. Ecology. Second. Massachusets, Sinauer Associates, 2011.

MLA-referens

Bowman, William D., et al. Ecology. Second. 2011.