APA استشهاد

Cain, M. L., Bowman, W. D., & Hacker, S. D. Ecology (Third edition.).

استشهاد بنمط شيكاغو

Cain, Michael L., William D. Bowman, و Sally D. Hacker. Ecology. Third edition.

MLA استشهاد

Cain, Michael L., et al. Ecology. Third edition.