Quiet Please
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✎ Suggest a correctionDescribes the acoustical research at the Armour Research Foundation as an example of industry's efforts to combat production and noise in machines, engines, automobiles, airplanes and even automobile tires.
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- A-V Online (National Information Center for Educational Media). CD-ROM database of educational and documentary media, compiled and maintained by the National Information Center for Educational Media (NICEM). — title, creator, length, format, sound, description
- 16mm Filmography (legacy record) — year, catalog record
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