APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (8. p.)

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