| Title / Condition | Highlights | Price |
|---|---|---|
| The foundations of empirical knowledge Ayer, A. J. (Alfred Jules) (1910-1989) / Used - Hardcover | 1st Edition Fine/VG+ | $91.80 |
| The foundations of empirical knowledge Ayer, A. J. (Alfred Jules) (1910-1989) / Used - Hardcover | 1st Edition Fine/VG+ | $89.71 |