D.O. · Peter D. · Peter Dell
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| GURPS Low-Tech | 978-1-55634-802-0 (1-55634-802-9) | 2010 | William H. Stoddard · Peter Dell'Orto · Dan Howard · Matt Riggsby · Abrar Ajmal |
| GURPS Martial Arts | 978-1-55634-762-7 (1-55634-762-6) | 2007 | Sean Punch · Peter Dell'Orto |