Air quality in selected urban areas 1977-1978: Global environmental monitoring system
Air quality in selected urban areas 1977-1978: Global environmental monitoring system
/ Prepared in cooperation with the WHO collaborating.............................Washington, DC, USA
- Geneva: World Health Organization, 1980
- 71p.
- WHO offset publication no. 57 .
504.064(203)(1-21)"1977/1978" / M0
504.064(203)(1-21)"1977/1978" / M0