1. Air Quality Criteria for Sulfur Oxides,1969
2. Sulfur dioxide—To what level is it acceptable?;Brasser;Report G300 Research Institute for Public Health Engng,1967
3. A new mathematical model of air pollutant concentration averaging time and frequency;Larsen;J. Air Pollut. Control. Ass.,1969
4. Recommended Methods in Air Pollution Measurements,1967