| The Two Fundamental Problems of the Theory of Knowledge Popper, Karl (Author)/ Pickel, Andreas (Translated by)/ Kinory, John (Translated by)/ Hansen, Troels Eggers (Edited by) / New - Hardcover | Revaluation Books | | $245.19 |
| The Two Fundamental Problems of the Theory of Knowledge Popper Karl R Hansen Troels Eggers Popper Karl / New - Hardcover | Biblios | | $218.34 |
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