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	1.	No cover image available Speech levels in various noise environments/ by Karl S. Pearsons, Ricarda Bennett, and Sanford Fidell by Bolt,Beranek and Newman Inc Series: Environmental Health Effects Research Series Publication details: Wahington, D.C.: U.S. Environmental Protection Agency, May 1977 Availability: Items available for loan: (1)Call number: 534.78:534.83 PEA Copy 1. Not available: National Acoustic Laboratories: Checked out (1). Add to cart (remove)
	2.	No cover image available Prescription of hearing aids : rationale, procedure, and results / by Kenneth W. Berger, Eric N. Hagberg, Robert L. Rane. by Berger, Kenneth Walter, 1924- Hagberg, Eric N Rane, Robert L Publication details: Kent, Ohio : Herald Pub. House, 1977 Availability: Items available for loan: (1)Call number: 621.395.92.005 BER. National Acoustic Laboratories (1)Call number: 621.395.92.005 BER. Place hold Add to cart (remove)
	3.	No cover image available ANSI S3.14-1977. For rating noise with respect to speech interference by Acoustical Society of America Material type: Text; Format: print ; Literary form: Not fiction Publication details: New York Coustical Society of America 1977 Availability: Items available for loan: National Acoustic Laboratories (1)Call number: ANSI S3.14-1977. Place hold Add to cart (remove)
	4.	Binaural hearing aids / Andreas Markides. by Markides, Andreas Material type: Text; Format: print ; Literary form: Not fiction Publication details: London ; New York : Academic Press, 1977 Availability: Items available for loan: National Acoustic Laboratories (1)Call number: 621.395.92b MAR. Place hold Add to cart (remove)

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