TY  - BOOK
ED  - World Health Organization.
ED  - WHO Collaborating Centre on Environmental Pollution Control.
TI  - Air quality in selected urban areas, 1973-1974
SN  - 9241700300
PY  - 1976///
CY  - Geneva
PB  - World Health Organization
KW  - Air pollutants
KW  - analysis
KW  - Sulfur dioxide
KW  - Environmental monitoring
UR  - http://apps.who.int/iris/
ER  -