APA-referens (7:e uppl.)

Brennan, D., Concordia, M., & Madden, M. Law enforcement response to lone-actor incidents at the local through federal levels. Lone-actor terrorism : an integrated framework.

Chicago-referens (17:e uppl.)

Brennan, Douglas, Mark Concordia, och Michael Madden. "Law Enforcement Response to Lone-actor Incidents at the Local Through Federal Levels." Lone-actor Terrorism : An Integrated Framework .

MLA-referens (8:e uppl.)

Brennan, Douglas, et al. "Law Enforcement Response to Lone-actor Incidents at the Local Through Federal Levels." Lone-actor Terrorism : An Integrated Framework, .

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.