TY - BOOK AU - Levitt,Harry AU - Pickett,J.M. AU - Houde,Robert A. TI - Sensory aids for the hearing impaired T2 - IEEE Press selected reprint series SN - 0471084379 (Wiley : pbk.) AV - RF300 .S46 U1 - 617.89 LEV 19 PY - 1980/// CY - New York PB - IEEE Press KW - Hearing aids KW - Deaf KW - Means of communication KW - Communication devices for people with disabilities N1 - Includes bibliographies and indexes ER -