APA (7th ed.) Citation

Yap, W. S. (2011). Biologically active alkaloids from kopsia / Yap Wai Sum.

Chicago Style (17th ed.) Citation

Yap, Wai Sum. Biologically Active Alkaloids from Kopsia / Yap Wai Sum. 2011.

MLA (9th ed.) Citation

Yap, Wai Sum. Biologically Active Alkaloids from Kopsia / Yap Wai Sum. 2011.

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