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	1.	Acoustical factors affecting hearing aid performance / edited by Gerald A. Studebaker and Irving Hochberg by Hochberg, Irving Studebaker, Gerald A Series: Perspectives in audiology series Publication details: Baltimore : University Park Press, 1980 Availability: Items available for loan: National Acoustic Laboratories (1)Call number: 621.395.92 .001.4:534 ACO. Add to cart (remove)
	2.	No cover image available Principles of language learning and teaching by Brown, H Douglas Material type: Text; Format: print ; Literary form: Not fiction Publication details: Englewood Cliffs, NJ Prentice - Hall, N J 1980 Availability: Items available for loan: National Acoustic Laboratories (1)Call number: 534.78 BRO. Place hold Add to cart (remove)
	3.	No cover image available DIN 45645-2. Determining noise rating levels from measured data Material type: Text; Format: print ; Literary form: Not fiction Publication details: Sydney Standards Australia 1980 Availability: Items available for loan: National Acoustic Laboratories (1)Call number: DIN 45645-2. Place hold Add to cart (remove)

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