APA (7th ed.) Citation

Van Wyk, B., & Wink, M. (2004). Medicinal plants of the world. Time Editions.

Chicago Style (17th ed.) Citation

Van Wyk, Ben-Erik, and Michael Wink. Medicinal Plants of the World. Singapore: Time Editions, 2004.

MLA (9th ed.) Citation

Van Wyk, Ben-Erik, and Michael Wink. Medicinal Plants of the World. Time Editions, 2004.