| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Political Discussion in Modern Democracies | 978-1-138-88211-9 (1-138-88211-9) | 2015 | Michael R. Wolf |
| Political Discussion in Modern Democracies: A Comparative Perspective | 978-0-415-54845-8 (0-415-54845-4) | 2010 | Michael R. Wolf · Ken'ichi Ikeda |