Παραπομπή σε μορφή APA (7η εκδ.)

World Health Organization. (2012). Persisting pain in children: Important information for policy makers. World Health Organization.

Παραπομπή σε μορφή Chicago (17η εκδ.)

World Health Organization. Persisting Pain in Children: Important Information for Policy Makers. Geneva, Switzerland: World Health Organization, 2012.

Παραπομπή σε μορφή MLA (8th εκδ.)

World Health Organization. Persisting Pain in Children: Important Information for Policy Makers. World Health Organization, 2012.