APA (7th ed.) Citation

Billings, W. D. (1970). Plants, man, and the ecosystem (2d ed.). Wadsworth.

Chicago Style (17th ed.) Citation

Billings, W. D. Plants, Man, and the Ecosystem. 2d ed. California: Wadsworth, 1970.

MLA (9th ed.) Citation

Billings, W. D. Plants, Man, and the Ecosystem. 2d ed. Wadsworth, 1970.

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