Cerddi David Thomas ('Llwydiarth Môn'),
- NLW Misc. Records 415.
- file
- 1933.
Cerddi (printiedig a llawysgrif) yn Gymraeg, gan gynnwys rhai gan David Thomas ('Llwydiarth Môn'). = Items of Welsh verse (ms. and printed) including poems by David Thomas ('Llwydiarth Môn').