| 其他書名 | A Technical and Practical Guide for Hard-of-hearing People |
| 出版 | Self Help for Hard of Hearing People, Incorporated, 1988 |
| 主題 | Technology & Engineering / Telecommunications |
| ISBN | 09354730419780935473049 |
| URL | http://books.google.com.hk/books?id=Rh_1MQMxeL8C&hl=&source=gbs_api |