Wolrd Health Organization & World Health Organization. (2007). WHO monographs on selected medicinal plants. World Health Organization.
Chicago-Zitierstil (17. Ausg.)Wolrd Health Organization und World Health Organization. WHO Monographs on Selected Medicinal Plants. Geneva: World Health Organization, 2007.
MLA-Zitierstil (8. Ausg.)Wolrd Health Organization und World Health Organization. WHO Monographs on Selected Medicinal Plants. World Health Organization, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.