Amplification for the hearing impaired

Sonraí bibleagrafaíochta
Rannpháirtithe:	Pollack, Michael C.
Formáid:	LEABHAR
Teanga:	English
Foilsithe / Cruthaithe:	New York Grune & Stratton c1980.
Eagrán:	2nd edition.
Ábhair:	Audiology. Hearing aids.