TY - BOOK AU - Studebaker,Gerald A. AU - Hochberg,Irving TI - Acoustical factors affecting hearing aid performance SN - 0205137784 U1 - 617.89 20 PY - 1993/// CY - Boston PB - Allyn and Bacon KW - Hearing aids KW - Design and construction KW - Fitting KW - Speech perception N1 - Includes bibliographical references and indexes ER -