Holland W.W. (1972) Air Pollution and Respiratory Disease. Westport, Connecticut: Technomic Publishing Co.
National Academy of Sciences (1974) Panel on Airborne Particles. Airborne particles and sulfur oxides, pp. 391–412. In National Academy of Sciences, Coordinating Committee on Air Quality Studies. Vol. 2. Health Effects of Air Pollutants. Prepared for the U.S. Senate Committee on Public Works. Washington, D.C.: U.S. Government Printing Office.
North Atlantic Treaty Organization (1972) Committee on the Challenges of Modern Society. Air Pollution. Air Quality Criteria for Sulfur Oxides. Washington, D.C.: U.S. Government Printing Office, 324 pp.
Rall, D.P. (1974) Review of the Health effects of sulfur oxides. Environ. Health Perspect. 8:97–121.
U.S. Department of Health, Education, and Welfare (1970) Public Health Service. Air Quality Criteria for Sulfur Oxides. National Air Pollution Control Administration Publication No. AP-50. Washington, D.C.: U.S. Government Printing Office, 178pp.