| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Main Trends in Psychology | 978-O-O6-13178O-4 (O-O6-13178O-2) | 1974 |
Bärbel Inhelder Jean Piaget · Henri Jean Piaget - Schneider · J. P. · Jean Jean Piaget · Jean [Mitarb.]: Piaget · Jean Piaget · Jean Piaget/Bärbel Inhelder · Jean Piaget Jean · Piaget J