| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| The Principles of Projective Geometry Applied to the Straight Line and Conic: -1913 | 978-1-112-27983-6 (1-112-27983-0) | 2009 |
| The Theory of the Imaginary in Geometry: -1920 | 978-1-112-22897-1 (1-112-22897-7) | 2009 |