| title | ISBN-13 (ISBN-10) | year of publication |
|---|---|---|
| Allegiance to Liberty: The Changing Face of Patriots, Militias, and Political Violence in America | 978-1-4408-3095-2 (1-4408-3095-9) | 2014 |
| Hate Groups and Extremist Organizations in America: An Encyclopedia | 978-1-4408-5750-8 (1-4408-5750-4) | 2019 |
| Modern American Extremism and Domestic Terrorism: An Encyclopedia of Extremists and Extremist Groups | 978-1-4408-5274-9 (1-4408-5274-X) | 2018 |