TY  - BOOK
AU  - Digiovanni, Jeffrey J
TI  - Hearing aid handbook, 2008-2009
SN  - 9781418051983
SN  - 200892075
U1  - 617.89 DIG 
PY  - 2008///
CY  - New York
PB  - Delmar, Cengage Learning
KW  - Hearing aids
N1  - Includes bibliographical references (p. 382-386) and index
ER  -