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.
Παραπομπή σε μορφή Chicago (17η εκδ.)World Health Organization και World Health Organization. National Policy on Traditional Medicine and Regulation of Herbal Medicines: Report of a WHO Global Survey. Geneva: World Health Organization, 2005.
Παραπομπή σε μορφή MLA (8th εκδ.)World Health Organization και World Health Organization. National Policy on Traditional Medicine and Regulation of Herbal Medicines: Report of a WHO Global Survey. World Health Organization, 2005.
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