1. Large scale noise surveys: an educational experiment;Attenborough;Acustica,1973
2. BS 4142 Method of rating industrial noise affecting mixed residential and industrial areas;British Standards Institution,1967
3. Community Noise, NY10300.3, December 31;U.S. Environmental Protection Agency and Wyle Laboratories,1971
4. J. W. Sargent June 1973 Private communication, Building Research Establishment.
5. Statistical analysis from a sound level meter;Scholes;Applied Acoustics,1973