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| Gwyddonydd anwyddonol? : rhai meddyliau am Alfred Russel Wallace (1823-1913) / | R. Elwyn Hughes. | View Article |
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| Athroniaeth a chymdeithaseg gwyddoniaeth | Iwan Rhys Morris. | View Article |
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| Crefydd yr uchelwyr a'u beirdd | Enid Pierce Roberts. | View Article |
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| Problemau athroniaeth gwyddoniaeth : symposiwm / | O.R. Jones a John Daniel. | View Article |
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| Achos, amod a phenderfyniaeth | Evan L. James. | View Article |
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| Wittgenstein : attention to particulars : Book review. | Walford Gealy. | View Article |
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| Rhaglen y gynhadledd 1991 | View Article |
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