Kowalewski Robert · R.K. · Robert K.
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Blogoslawiona Maria Bolognesi | 978-83-7482-685-3 (83-7482-685-1) | 2015 |
| Kwiatki Jana XXIII | 978-83-7482-626-6 (83-7482-626-6) | 2014 |
| Walka swietych i mistykow z demonami | 978-83-7482-644-0 (83-7482-644-4) | 2014 |