1. The noise of natural gas burners;Roberts;Applied Acoustics,1971
2. Assessment of the noise of domestic appliances;Leventhall,1971
3. Towards a unified system of noise assessment;Robinson;J. Sound Vib.,1971
4. The role of the dB(A);Harman;Applied Acoustics,1969
5. Method of Rating Industrial Noise Affecting Mixed Residential and Industrial Areas, B.S. 4142,1967