Cita APA (7a ed.)
World Health Organization & World Health Organization. Division of Public Information. World health. Division of Public Information.
Cita Chicago Style (17a ed.)
World Health Organization y World Health Organization. Division of Public Information. World Health. Geneva: Division of Public Information.
Cita MLA (9a ed.)
World Health Organization y World Health Organization. Division of Public Information. World Health. Division of Public Information.
Precaución: Estas citas no son 100% exactas.