World Health Organization. (2009). The use of herbal medicines in primary health care. World Health Organization.
Chicago-Zitierstil (17. Ausg.)World Health Organization. The Use of Herbal Medicines in Primary Health Care. New Delhi: World Health Organization, 2009.
MLA-Zitierstil (8. Ausg.)World Health Organization. The Use of Herbal Medicines in Primary Health Care. World Health Organization, 2009.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.