APA (7th ed.) Citation

Clements, F. E., Weaver, J. E., & Hanson, H. C. (1929). Plant competition: An analysis of community functions.

Chicago Style (17th ed.) Citation

Clements, Frederic E., John E. Weaver, and Herbert C. Hanson. Plant Competition: An Analysis of Community Functions. Washington, 1929.

MLA (9th ed.) Citation

Clements, Frederic E., et al. Plant Competition: An Analysis of Community Functions. 1929.