| Investigation of the Laws of Thought : On Which Are Founded the Mathematical Theories of Logic and Probabilities Boole, George / New - Hardcover | GreatBookPricesUK | | $70.23 |
| An Investigation of the Laws of Thought : On Which Are Founded the Mathematical Theories of Logic and Probabilities: Volume 2 Of George Boole's Collected Logical Works George Boole / New - Hardcover | AHA-BUCH GmbH | | $65.80 |
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| An Investigation Of The Laws Of Thought, On Which Are Founded The Mathematical Theories Of Logic And Probabilities George Boole / New - Hardcover | AHA-BUCH GmbH | | $64.14 |
| An Investigation Of The Laws Of Thought, On Which Are Founded The Mathematical Theories Of Logic And Probabilities Boole, George / New - Hardcover | Biblios | | $59.08 |
| An Investigation of the Laws of Thought [microform] Boole, George / New - Hardcover | Biblios | | $59.07 |
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| An Investigation of the Laws of Thought [microform] Boole, George / New - Hardcover | Majestic Books | | $56.29 |
| Investigation of the Laws of Thought : On Which Are Founded the Mathematical Theories of Logic and Probabilities Boole, George / New - Hardcover | GreatBookPrices | | $54.35 |