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- Benoit, Peter Michael, 1931- -- Correspondence, 2 results
- Roberts, Evan, 1906-1991, 1 results
- Lhuyd, Edward, 1660-1709, 1 results
- Chater, A. O., 1 results
- Ratcliffe, Derek, 1929- -- Correspondence., 1 results
- Ratcliffe, Derek, 1929-, 1 results
- Chater, A. O. -- Correspondence, 1 results
- Roberts, Evan, 1906-1991 -- Correspondence, 1 results
- All
- Natural history -- Wales -- Snowdonia, 1 results
- Landscape -- Wales -- Snowdonia, 1 results
- Tourism -- Wales -- Snowdonia, 1 results
- Snowdonia (Wales) -- Description and travel, 1 results
- Birds -- Conservation -- Wales -- Craig yr Aderyn., 1 results
- Meadows -- Wales -- Brithdir (Merionethshire), 1 results
- Natural areas -- Wales -- Talsarnau., 1 results
- Ty Glas (Brithdir, Dolgellau, Wales), 1 results