| The Blue and Brown Books. WITTGENSTEIN, Ludwig. / Used - Hardcover | Athena Rare Books ABAA | 1st Edition Dust Jacket | $750.00 |
| The Blue and Brown Books Ludwig Wittgenstein / Used - Hardcover | APPLEDORE BOOKS, ABAA | 1st Edition Dust Jacket | $650.00 |
| Preliminary Studies for the "Philosophical Investigations" Generally Known as the Blue and Brown Books Wittgenstein, Ludwig / Used - Hardcover | Mullen Books, ABAA | 1st Edition | $600.00 |
| THE BLUE AND BROWN BOOKS Preliminary Studies for the 'Philosophical Investigations' generally known as The Blue and Brown Books. Wittgenstein, Ludwig. / Used - Hardcover | Antiquariat Michael Solder | 1st Edition | $543.36 |
| Preliminary studies for the 'Philosophical investigations',: Generally known as the Blue and Brown books Wittgenstein, Ludwig / New - Hardcover | GoldBooks | | $500.55 |
| THE BLUE AND BROWN BOOKS Preliminary Studies for the 'Philosophical Investigations' generally known as The Blue and Brown Books Ludwig Wittgenstein / Used - Hardcover | Rare Book Cellar | Dust Jacket | $382.95 |
| The Blue and Brown Books Ludwig Wittgenstein / Used - Hardcover | North Books: Used & Rare | 1st Edition Dust Jacket | $300.00 |
| Generally known as The Blue and Brown Books; Preliminary Studies for the Philosophical Investigations Wittgenstein, Ludwig / Used - Hardcover | James & Mary Laurie, Booksellers A.B.A.A | 1st Edition Dust Jacket | $280.00 |
| The Blue and Brown Books Ludwig Wittgenstein / Used - Hardcover | BazaarofBooks | 1st Edition | $278.87 |
| Preliminary Studies for the "Philosophical Investigations" Generally Known As The Blue and Brown Books Wittgenstein, Ludwig / Used - Hardcover | Pride and Prejudice-Books | 1st Edition | $204.00 |
| Preliminary Studies for the "Philosophical Investigations": Generally Known as the Blue and Brown Books Wittgenstein, Ludwig / Used - Hardcover | Tiber Books | 1st Edition Dust Jacket | $125.00 |
| THE BLUE AND BROWN BOOKS Preliminary Studies for the 'Philosophical Investigations' generally known as The Blue and Brown Books Ludwig Wittgenstein / Used - Hardcover | HALCYON BOOKS | | $110.86 |
| Preliminary Studies for the "Philosophical Investigations": Generally Known as the Blue and Brown Books Wittgenstein, Ludwig / Used - Hardcover | Jay W. Nelson, Bookseller, IOBA | Dust Jacket | $95.00 |
| Preliminary Studies for the "Philosophical Investigations". Generally Known as the Blue and Brown Books "WITTGENSTEIN, LUDWIG. / Used - Hardcover | Herman H. J. Lynge & Søn ILAB-ABF | Dust Jacket | $80.79 |
| The Blue & Brown Books Wittgenstein, Ludwig / Used - Hardcover | Bookbid | Near fine Dust Jacket | $75.00 |
| Preliminary studies for the "Philosophical investigations" : generally known as the Blue and Brown books / by Ludwig Wittgenstein Wittgenstein, Ludwig / Used - Hardcover | MW Books | Dust Jacket | $68.00 |
| The Blue and Brown Books Wittgenstein, Ludwig / Used - Hardcover | BBBooks | Dust Jacket | $66.93 |
| Preliminary studies for the 'Philosophical investigations',: Generally known as the Blue and Brown books Wittgenstein, Ludwig / Used - Hardcover | Pomfret Street Books | Dust Jacket | $65.00 |
| Preliminary Studies for the 'Philosophical Investigations' Generally known as The Blue and Brown Books. Wittgenstein, Ludwig. / Used - Hardcover | Much Ado Books | Near fine Dust Jacket | $62.75 |
| Blue & Brown Books: Preliminary Studies for the Philosophical Investigations Wittgenstein, Ludwig / Used - Hardcover | GREENSLEEVES BOOKS | | $55.77 |
| Preliminary studies for the "Philosophical investigations" : generally known as the Blue and Brown books / by Ludwig Wittgenstein Wittgenstein, Ludwig / Used - Hardcover | MW Books Ltd. | Dust Jacket | $54.34 |
| The Blue and Brown Books Ludwig Wittgenstein / Used - Hardcover | Bailey Bonzo Books | Near fine Dust Jacket | $51.98 |