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  1. 1
    Noise levels and flight profiles of eight helicopters using proposed international certification procedures /
    by Newman, J. Steven
    Published 1979
    Government Document Book
  2. 2
    Helicopter noise definition report : UH-60A, S-76, A-109, 206-L /
    by Newman, J. Steven
    Published 1982
    Government Document Book
  3. 3
    Helicopter noise exposure curves for use in environmental impact assessment /
    by Newman, J. Steven
    Published 1982
    Government Document Book
  4. 4
    International Civil Aviation Organization helicopter noise measurement repeatability program : U.S. test report : Bell 206L-1 noise measurement flight test /
    by Newman, J. Steven
    Published 1985
    Government Document Book
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