APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

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