APA (7th ed.) Citation

Putman, R. J., & Wratten, S. D. (1984). Principles of ecology / R.J. Putman and S.D. Wratten. Croom Helm.

Chicago Style (17th ed.) Citation

Putman, R. J., and Stephen D. Wratten. Principles of Ecology / R.J. Putman and S.D. Wratten. London: Croom Helm, 1984.

MLA (9th ed.) Citation

Putman, R. J., and Stephen D. Wratten. Principles of Ecology / R.J. Putman and S.D. Wratten. Croom Helm, 1984.

Warning: These citations may not always be 100% accurate.