World Health organization. (2009). Priority areas for research in communicable diseases. World Health Organization.
Cita Chicago (17th ed.)World Health organization. Priority Areas for Research in Communicable Diseases. New Delhi: World Health Organization, 2009.
Cita MLA (8th ed.)World Health organization. Priority Areas for Research in Communicable Diseases. World Health Organization, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.