Cita APA (7th ed.)

World Health Organization. (1999). Sexually transmitted infections prevalence study methodology. World Health Organization.

Cita Chicago (17th ed.)

World Health Organization. Sexually Transmitted Infections Prevalence Study Methodology. Geneva,Switzerland: World Health Organization, 1999.

Cita MLA (8th ed.)

World Health Organization. Sexually Transmitted Infections Prevalence Study Methodology. World Health Organization, 1999.