APA (7th ed.) Citation

Whalen, M. A. (1987). Systematics of Frankenia (Frankeniaceae) in North and South America. American Society of Plant Taxonomists.

Chicago Style (17th ed.) Citation

Whalen, Molly Ann. Systematics of Frankenia (Frankeniaceae) in North and South America. Ann Arbor, Mich.: American Society of Plant Taxonomists, 1987.

MLA (9th ed.) Citation

Whalen, Molly Ann. Systematics of Frankenia (Frankeniaceae) in North and South America. American Society of Plant Taxonomists, 1987.