Cita APA (7th ed.)

World Health Organization. (1997). Determination of airborne fibre number concentrations. World Health Organization.

Cita Chicago (17th ed.)

World Health Organization. Determination of Airborne Fibre Number Concentrations. Geneva: World Health Organization, 1997.

Cita MLA (8th ed.)

World Health Organization. Determination of Airborne Fibre Number Concentrations. World Health Organization, 1997.