Cita APA (7a ed.)

World Health Organization. (2012). WHO guidelines on the pharmacological treatment of persisting pain in children with medical illness. World Health Organization.

Cita Chicago Style (17a ed.)

World Health Organization. WHO Guidelines on the Pharmacological Treatment of Persisting Pain in Children with Medical Illness. Geneva, Switzerland: World Health Organization, 2012.

Cita MLA (8a ed.)

World Health Organization. WHO Guidelines on the Pharmacological Treatment of Persisting Pain in Children with Medical Illness. World Health Organization, 2012.