1. Public Law 92-574, 86 Stat. 1234, October 27, 1972;Noise Control Act of 1972,1972
2. EPA document 550/9-73-002, July 27, 1973;Public health and welfare criteria for noise,1973
3. EPA Document 550/9-74-004, March 1974;Information on levels of environmental noise requisite to protect public health and welfare with an adequate margin of safety,1974
4. Report from the EPA Administrator, Senate Committee Print 93-8, August 1973;Report on aircraft/airport noise,1973