Sensory aids for the hearing impaired /
edited by Harry Levitt, James M. Pickett, Robert A. Houde.
- New York : IEEE Press, c1980.
- ix, 566 p. : ill.
- IEEE Press selected reprint series .
0471084360
Hearing aids.
Deaf--Means of communication.
Communication devices for the disabled.
0471084360
Hearing aids.
Deaf--Means of communication.
Communication devices for the disabled.