APA (7th ed.) Citation

Billings, W. D. (1964). Plants and the ecosystem. Wadsworth Pub. Co..

Chicago Style (17th ed.) Citation

Billings, W. D. Plants and the Ecosystem. Belmont, Calif.: Wadsworth Pub. Co., 1964.

MLA (9th ed.) Citation

Billings, W. D. Plants and the Ecosystem. Wadsworth Pub. Co., 1964.

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