World Health Organization. (1998). Monitoring ambient air quality for health impact assessment. World Health Organization.
Chicago-referens (17:e uppl.)World Health Organization. Monitoring Ambient Air Quality for Health Impact Assessment. Copenhagen: World Health Organization, 1998.
MLA-referens (8:e uppl.)World Health Organization. Monitoring Ambient Air Quality for Health Impact Assessment. World Health Organization, 1998.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.