| Unended Quest (Routledge Classics) Popper, Karl / New - Hardcover | Biblios | | $168.29 |
| Unended Quest: An Intellectual Autobiography Popper, Karl (Author) / New - Hardcover | Revaluation Books | | $155.41 |
| Unended Quest (Routledge Classics) Popper, Karl / New - Hardcover | Books Puddle | | $149.79 |
| Unended Quest: An Intellectual Autobiography Sir Karl Popper / New - Hardcover | THE SAINT BOOKSTORE | | $138.37 |
| Unended Quest: An Intellectual Autobiography (Routledge Classics) Popper, Karl / Used - Hardcover | BooksRun | | $133.26 |
| Unended Quest: An Intellectual Autobiography Popper, Karl Raimund / New - Hardcover | BennettBooksLtd | | $131.53 |
| Unended Quest: An Intellectual Autobiography (Routledge Classics) Karl Popper / New - Hardcover | Chiron Media | | $108.50 |
| Unended Quest: An Intellectual Autobiography (Routledge Classics) Popper, Karl / New - Hardcover | Griffin Books | | $100.00 |
| Unended Quest: An Intellectual Autobiography Karl Popper / Used - Hardcover | JuddSt.Pancras | Dust Jacket | $63.58 |
| UNENDED QUEST an Intellectual Autobiography Popper, Karl / Used - Hardcover | J. Wyatt Books | Fine/VG+ Dust Jacket | $57.50 |