World Health Organization & World Health Organization. (2005). National policy on traditional medicine and regulation of herbal medicines: Report of a WHO global survey. World Health Organization.
Citazione stile Chigago Style (17a edizione)World Health Organization e World Health Organization. National Policy on Traditional Medicine and Regulation of Herbal Medicines: Report of a WHO Global Survey. Geneva: World Health Organization, 2005.
Citatione MLA (8a ed.)World Health Organization e World Health Organization. National Policy on Traditional Medicine and Regulation of Herbal Medicines: Report of a WHO Global Survey. World Health Organization, 2005.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.