Research Catalog

  • A large hemi-anechoic enclosure for community-compatible aeroacoustic testing of aircraft propulsion systems [microform] / Beth A. Cooper.

    • Text
    • [Washington, DC] : National Aeronautics and Space Administration ; [Springfield, Va. : National Technical Information Service, distributor, 1993]
    • 1993
  • A comprehensive approach to management of workplace and environmental noise at NASA Lewis Research Center [microform] / Beth A. Cooper.

    • Text
    • [Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : National Technical Information Service, distributor, 1995]
    • 1995

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