World Health Organization. (1998). Monitoring ambient air quality for health impact assessment. World Health Organization.
Citazione stile Chigago Style (17a edizione)World Health Organization. Monitoring Ambient Air Quality for Health Impact Assessment. Copenhagen: World Health Organization, 1998.
Citatione MLA (8a ed.)World Health Organization. Monitoring Ambient Air Quality for Health Impact Assessment. World Health Organization, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.