| Title / Condition | Seller | Highlights | Price |
|---|---|---|---|
| The Problem of Knowledge. Ayer, A.J / Used - Hardcover | Raptis Rare Books | 1st Edition Signed Fine/VG+ Dust Jacket | $2,000.00 |
| THE PROBLEM OF KNOWLEDGE Ayer, A. J. / Used - Hardcover | J. Wyatt Books | 1st Edition Dust Jacket | $97.75 |
| The Problem of Knowledge (Pelican) Ayer, A. J. / New - Hardcover | GreatBookPrices | $58.78 | |
| The Problem of Knowledge Ayer, A.J. / Used - Hardcover | Callaghan Books South | Fine Dust Jacket | $55.00 |
| The Problem of Knowledge. Ayer, A. J. / Used - Hardcover | Abbey Books | Dust Jacket | $49.95 |