A. W. · Andreas Witzel · D.A. · D.W.
| title | media type | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|---|
| The Problem-Centred Interview | Paperback | 978-1-84920-100-1 (1-84920-100-5) | 2012 | Herwig Reiter |
| The Problem-Centred Interview | Hardcover | 978-1-84920-099-8 (1-84920-099-8) | 2011 | " |