Gregorio Katz ยท Katja Gragert
| title | ISBN-13 | year of publication |
|---|---|---|
| LOS PEQUES 3 | 978-970-10-5505-2 | 2012 |
| MATEMATICAS PARA PEQUES 2 PREESCOLAR | 978-970-10-5821-3 | 2012 |
| PEQUES 1 LEEN Y ESCRIBEN | 978-970-10-5507-6 | 2012 |
| PEQUES LEEN Y ESCRIBEN 2 | 978-970-10-5506-9 | 2012 |