Sut i ddefnyddio eich cymorth clywed = How to use your hearing aid.
NHS Wales.
Wales.Welsh Assembly Government.
Caerdydd : Llywodraeth Cynulliad Cymru,
2005.
Welsh/English text inverted and bound back to back.
"February 2005"
At foot of cover: NHS Wales/GIG Cymru.
Hearing aids.