Harvard University Press · Peter Lang GmbH, Internationaler Verlag der Wissenschaften
| title | ISBN-13 (ISBN-10)  | year of publication | |
|---|---|---|---|
| The Columbia Circle of Scholars: Selections from the Journal | 978-3-631-37007-0 (3-631-37007-5)  | 2001 | |
| Why Hitler Came into Power | 978-0-674-95200-3 (0-674-95200-6)  | 1986 |