Cita APA (7th ed.)

Cain, M. L., Bowman, W. D., & Hacker, S. D. (2011). Ecology (2nd ed.). Sinauer Associates.

Cita Chicago (17th ed.)

Cain, Michael L., William D. Bowman, i Sally D. Hacker. Ecology. 2nd ed. Sunderland, Mass.: Sinauer Associates, 2011.

Cita MLA (8th ed.)

Cain, Michael L., et al. Ecology. 2nd ed. Sinauer Associates, 2011.