Dull newydd Curwen
By: [addasiad Cymraeg gan Joan Wyn Hughes]. Llyfr 1, Tonic solffa yn y dosbarth.
Contributors: Hughes, Joan Wyn.; Curwen Institute.
Publisher: Cyngor Sir Gwynedd
Place of publication: [Caernarfon]
Language: wel
Number of pages: 64
Work titles: The new Curwen method.