| Title / Condition | Seller | Highlights | Price |
|---|---|---|---|
| OBJECTIVE KNOWLEDGE: An Evolutionary Approach. POPPER, Karl R. / Used - Hardcover | LUCIUS BOOKS (ABA, ILAB, PBFA) | 1st Edition Fine/VG+ | $139.43 |
| Objective Knowledge - An Evolutionary Approach Karl R. Popper / Used - Hardcover | Barclay Books | 1st Edition Fine/VG+ | $118.49 |
| Objective Knowledge: An Evolutionary Approach Popper, Karl R. / Used - Hardcover | Bookcase | 1st Edition Dust Jacket | $111.55 |
| Objective Knowledge: An Evolutionary Approach Popper, Sir Karl / Used - Hardcover | Anybook.com | $73.25 | |
| Objective Knowledge: An Evolutionary Approach Popper, Sir Karl Popper, Karl R. / Used - Hardcover | Hay-on-Wye Booksellers | $55.77 |