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Num Mark Subjects (1-2 of 2) Year Entries
2 Found
1 Hearing levels. : Noise matters : the evolution of communication / R. Haven Wiley  2015 1
2 Hearing levels -- United States. : Final environmental impact statement on a hearing conservation amendment to the standard for occupational exposure to noise / U.S. Dept. of Labor, Occupational Safety and Health Administration, Directorate of Technical Support, Office of Regulatory Analysis  1981 1
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