| Title / Condition | Seller | Highlights | Price |
|---|---|---|---|
| THE PROBLEM OF KNOWLEDGE Ayer, A. J. / Used - Hardcover | J. Wyatt Books | 1st Edition Dust Jacket | $97.75 |
| The Problem of Knowledge Ayer, A.J. / Used - Hardcover | Callaghan Books South | Price-clipped Fine Dust Jacket | $55.00 |
| The Problem of Knowledge A. J. Ayer / Used - Hardcover | HALCYON BOOKS | 1st Edition | $50.30 |
| The Problem of Knowledge. Ayer, A. J. / Used - Hardcover | Abbey Books | Dust Jacket | $49.95 |