TY  - BOOK
AU  - Tyler,Richard S.
AU  - Schum,Donald J.
TI  - Assistive devices for persons with hearing impairment
SN  - 0205151264
PY  - 1995///
CY  - Boston
PB  - Allyn and Bacon
KW  - Communication Aids for disabled
KW  - Hearing disorders
KW  - Rehabilitation
KW  - Hearing aids
ER  -