World Health Organization. (2009). The use of herbal medicines in primary health care. World Health Organization.
Chicago-referens (17:e uppl.)World Health Organization. The Use of Herbal Medicines in Primary Health Care. New Delhi: World Health Organization, 2009.
MLA-referens (8:e uppl.)World Health Organization. The Use of Herbal Medicines in Primary Health Care. World Health Organization, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.