| title | author | publisher | bookcover | info |
|---|---|---|---|---|
| Formal Semantics and Logic | Bas C. van Fraassen | The MacMillan Company - New York |  |  |
| title | author | publisher | bookcover | info |
|---|---|---|---|---|
| An Introduction to the Philosophy of Time and Space | Bas C. van Fraassen | Random House - New York |  |  |