| Title / Condition | Highlights | Price |
|---|---|---|
| Child's Conception of Number : Selected Works vol 2 Jean Piaget / New - Hardcover | $621.97 | |
| Principles of Genetic Epistemology : Selected Works vol 7 Jean Piaget / New - Hardcover | $620.00 | |
| Prototractatus : An early version of Tractatus Logio-Philosophicus Ludwig Wittgenstein / New - Hardcover | $551.58 | |
| Sketch for a Theory of the Emotions Jean-Paul Sartre / New - Hardcover | $197.07 |