| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Deadly Defence | 978-0-297-86350-2 (0-297-86350-9) | 2011 | Wladyslaw Izdebski · Ron Klinger |
| The Deadly Defence Quiz Book | 978-0-297-86477-6 (0-297-86477-7) | 2011 | Wladyslaw Izdebski · Ron Klinger |
R.K. · Roman Kirschner · Roman Krzanowski · Roman Krznaric · Roman Kurzmeyer · Romana Kryzanowska