Gerard Clauson · Gerhard Clausen · Gerhard Claußen
| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Coacher avec la Process Communication: Le Process Com coaching | 978-2-10-049265-7 | 2006 | Pascal Legrand |
| Comment leur dire...: La Process Communication | 978-2-10-049013-4 | 2005 | |
| Comment leur dire... La Process Communication | 978-2-10-004679-9 | 2003 | |
| Wie sag' ich's am besten...: Die Prozesskommunikation | 978-3-927323-02-5 | 2001 | Gerard Collignon |