G. K. · G. Konrad · Konrad Gaca
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Kuchnia Fit 2 Wspolne gotowanie | 978-83-7778-917-9 (83-7778-917-5) | 2015 |
| Kuchnia FIT | 978-83-7778-896-7 (83-7778-896-9) | 2014 |
| Moje odchudzanie | 978-83-7563-111-1 (83-7563-111-6) | 2014 |