Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Welsh Bibliographical Society, 3 canlyniadau
- University College of Wales (Aberystwyth, Wales), 1 canlyniadau
- Eisteddfod Genedlaethol Cymru., 1 canlyniadau
- Phillips, D. Rhys (David Rhys), 1862-1952, 1 canlyniadau
- Honourable Society of Cymmrodorion (London, England), 1 canlyniadau
- Thomas, D. Lleufer (Daniel Lleufer), 1863-1940, 1 canlyniadau
- National Library of Wales, 1 canlyniadau
- University of Wales. Guild of Graduates, 1 canlyniadau
- University of Wales, 1 canlyniadau
- Carmarthen Antiquarian Society, 1 canlyniadau