World Health Organization. (1997). Determination of airborne fibre number concentrations. World Health Organization.
芝加哥风格引文World Health Organization. Determination of Airborne Fibre Number Concentrations. Geneva: World Health Organization, 1997.
MLA引文World Health Organization. Determination of Airborne Fibre Number Concentrations. World Health Organization, 1997.
警告：这些引文格式不一定是100％准确.