APA (7th ed.) Citation

Tribe, M. A., Eraut, M. R., & Snook, R. K. (1975). Ecological principles. Cambridge University Press.

Chicago Style (17th ed.) Citation

Tribe, Michael A., Michael R. Eraut, and Roger K. Snook. Ecological Principles. Cambridge [etc.]: Cambridge University Press, 1975.

MLA (9th ed.) Citation

Tribe, Michael A., et al. Ecological Principles. Cambridge University Press, 1975.