Peter Lang Inc., International Academic Publishers · Transaction Publishers
| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Haeckel's Monism and the Birth of Fascist Ideology | 978-0-8204-4108-5 (0-8204-4108-2) | 1999 |
| The Scientific Origins of National Socialism | 978-0-7658-0581-2 (0-7658-0581-2) | 2004 |