1. Air Pollution and New Orleans Asthma;Lewis;Pub. Health Rep,1962
2. Epidemic Asthma in New Orleans;Weill;J. A. M. A,1964
3. Air Pollution in Donora, Pa.: Epidemiology of the Unusual Smog Episode of October, 1948;Schrenk;Pub. Health Bull,1949
4. Kozak, M., Chief Meteorologist, Franklin Institute Weather Center, Philadelpia, Pa., Personal Communications.
5. Local Climatological Data (Supplement): Philadelphia International Airport;United States Dept. of Commerce,1963