Cita APA (7a ed.)

(2009). World health statistics 2009. World Health Organization.

Cita Chicago Style (17a ed.)

World Health Statistics 2009. Paris: World Health Organization, 2009.

Cita MLA (9a ed.)

World Health Statistics 2009. World Health Organization, 2009.

Precaución: Estas citas no son 100% exactas.