APA (7th ed.) Citation

Clapham, W. B. (1981). Human ecosystems / W.B. Clapham, Jr. Macmillan ;.

Chicago Style (17th ed.) Citation

Clapham, W. B. Human Ecosystems / W.B. Clapham, Jr. New York ; London: Macmillan ;, 1981.

MLA (9th ed.) Citation

Clapham, W. B. Human Ecosystems / W.B. Clapham, Jr. Macmillan ;, 1981.

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