Gaya APA

nahrstedt, A. (1999). Planta Medica: natural products and medicinal plant research 4 volume 65 May 1999 . New York: Thieme.

Gaya MLA

nahrstedt, Adolf. "Planta Medica: natural products and medicinal plant research 4 volume 65 May 1999". New York: Thieme, 1999. Jurnal.