Acoustical factors affecting hearing aid performance /Publisher: Baltimore : University Park Press,
Date: c1980. This title can be found in 2 Iowa libraries.
Hearing aids : current developments and concepts /Publisher: Baltimore : University Park Press,
Date: c1976. This title can be found in 4 Iowa libraries.
A Conference on Hearing Aid Evaluation Procedures.Publisher: [Washington, American Speech and Hearing Association]
Date: 1967. This title can be found in 1 Iowa libraries.
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