K.k. · K. R. · Koper Ryszard
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Bog na drogach naszej codziennosci | 978-83-257-0785-9 (83-257-0785-2) | 2014 |
| Bog na drogach naszej codziennosci | 978-83-257-0623-4 (83-257-0623-6) | 2013 |
| Na drogach zbawienia | 978-83-257-0123-9 (83-257-0123-4) | 2008 |