- Extreme Right Wing Political Violence and Terrorism
- Political Parties and Terrorist Groups 2nd ed. (Extremism and Democracy)
- David Fisher, Petitioner, v. Jack L. Medwedeff, Trustee in the Matter of David Fisher, Individually, Etc. U.S. Supreme Court Transcript of Record with Supporting Pleadings
- Fascism, Populism and American Democracy
- The Rise and Fall of Italian Terrorism