APA Edition Citation

Billings, W. D. (1978). Plants and the ecosystem (3rd ed.). Wadsworth Publishing Company, Inc..

Chicago Edition Citation

Billings, William Dwight. Plants and the Ecosystem. 3rd ed. Belmont, Calif: Wadsworth Publishing Company, Inc., 1978.

MLA Edition Citation

Billings, William Dwight. Plants and the Ecosystem. 3rd ed. Wadsworth Publishing Company, Inc., 1978.

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