Cita APA (7th ed.)

World Health Organization & ebrary, Inc. (2008). Diagnosis and treatment. World Health Organization.

Cita Chicago (17th ed.)

World Health Organization i Inc ebrary. Diagnosis and Treatment. Geneva: World Health Organization, 2008.

Cita MLA (9th ed.)

World Health Organization i Inc ebrary. Diagnosis and Treatment. World Health Organization, 2008.