U. G. · Ursula Gaus · Ursula Gause · Ursula Geck
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Polish Fluency 1: Glossika Mass Sentences | 978-986-5648-93-0 (986-5648-93-8) | 2015 | Michael Campbell |
| Polish Fluency 2: Glossika Mass Sentences | 978-986-5648-94-7 (986-5648-94-6) | 2015 | " |
| Polish Fluency 3: Glossika Mass Sentences | 978-986-5648-95-4 (986-5648-95-4) | 2015 | " |