MapTools · Oxford University Press
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Axiomatics and Dogmatics | 978-0-19-520377-6 (0-19-520377-1) | 1990 |
| UTM Using your GPS with the Universal Transverse Mercator Coordinate System | 978-0-9710901-1-8 (0-9710901-1-4) | 2007 |