Kamilla Newbery · P.K. · Paul K · Paul Newbery
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Boomerang Intermediate Podrecznik Jezyk angielski | 978-83-7195-655-3 (83-7195-655-X) | 2007 | Monika Kusiak |
| Boomerang Pre - intermediate Podrecznik Jezyk angielski | 978-83-7195-876-2 (83-7195-876-5) | 2009 | " |