Cita APA (7th ed.)

Koh, H. L., Chua, T. K., & Tan, C. H. (2009). A guide to medicinal plants: An illustrated, scientific and medicinal approach. World Scientific Pub..

Cita Chicago (17th ed.)

Koh, Hwee Ling, Tung Kian Chua, i Chay Hoon Tan. A Guide to Medicinal Plants: An Illustrated, Scientific and Medicinal Approach. Singapore: World Scientific Pub., 2009.

Cita MLA (9th ed.)

Koh, Hwee Ling, et al. A Guide to Medicinal Plants: An Illustrated, Scientific and Medicinal Approach. World Scientific Pub., 2009.