A guide to the use of hearing aids by the hearing impaired adult /
Saved in:
| Institution som forfatter: | |
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| Format: | Bog |
| Sprog: | English |
| Udgivet: |
Canberra :
[National Acoustic Laboratories],
1974.
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| Fag: |
| Fysisk beskrivelse: | 15 p. : ill. |
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