Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Roberts, Evan, 1906-1991, 1 canlyniadau
- Lhuyd, Edward, 1660-1709, 1 canlyniadau
- Chater, A. O., 1 canlyniadau
- Benoit, Peter Michael, 1931- -- Correspondence, 1 canlyniadau
- Ratcliffe, Derek, 1929- -- Correspondence., 1 canlyniadau
- Ratcliffe, Derek, 1929-, 1 canlyniadau
- Chater, A. O. -- Correspondence, 1 canlyniadau
- Roberts, Evan, 1906-1991 -- Correspondence, 1 canlyniadau
- Lyttelton, Charles, 1714-1768, 1 canlyniadau
- Wynne, William, 1671?-1704, 1 canlyniadau
- Pob un
- Snowdonia (Wales) -- Description and travel, 4 canlyniadau
- Wales, North -- Description and travel, 1 canlyniadau
- Lake District (England) -- Description and travel, 1 canlyniadau
- Botany -- Wales, 1 canlyniadau
- Natural history -- Wales -- Snowdonia, 1 canlyniadau
- Landscape -- Wales -- Snowdonia, 1 canlyniadau
- Tourism -- Wales -- Snowdonia, 1 canlyniadau
- Rites and ceremonies -- Wales, North., 1 canlyniadau
- Wales, North -- Religious life and customs., 1 canlyniadau
- Wrexham (Wales) -- Description and travel., 1 canlyniadau
