| Title | Journal | Journal Categories | Citations | Publication Date |
|---|---|---|---|---|
| 10.1093/0195089871.001.0001 | ||||
| 10.1093/actrade/9780198245872.book.1 | ||||
| Michael Williams, Unnatural Doubts: Epistemological Realism and the Basis of Scepticism (Oxford: Basil Blackwell, 1991). | ||||
| Ludwig Wittgenstein, On Certainty, trans. G. E. M. Anscombe, (Oxford: Basil Blackwell, 1969). |