Παραπομπή σε μορφή APA (7η εκδ.)

World Health Organization & World Health Organization. (1998). Regulatory Situation of Herbal Medicines. World Health organization.

Παραπομπή σε μορφή Chicago (17η εκδ.)

World Health Organization και World Health Organization. Regulatory Situation of Herbal Medicines. Geneva: World Health organization, 1998.

Παραπομπή σε μορφή MLA (8th εκδ.)

World Health Organization και World Health Organization. Regulatory Situation of Herbal Medicines. World Health organization, 1998.