APA (7th ed.) Citation

Putnam, R. a. W., & Putnam, R. a. (1984). Principles of ecology. Croom Helm.

Chicago Style (17th ed.) Citation

Putnam, R.J. and Wratten, and R.J. and;Wratten Putnam. Principles of Ecology. Croom Helm, 1984.

MLA (9th ed.) Citation

Putnam, R.J. and Wratten, and R.J. and;Wratten Putnam. Principles of Ecology. Croom Helm, 1984.

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