APA (7th ed.) Citation

Worthington, R. B. (1983). The ecological century, a personal appraisal. Clarendon Press.

Chicago Style (17th ed.) Citation

Worthington, R. Barton. The Ecological Century, a Personal Appraisal. Clarendon Press, 1983.

MLA (8th ed.) Citation

Worthington, R. Barton. The Ecological Century, a Personal Appraisal. Clarendon Press, 1983.

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