APA-referens (7:e uppl.)

Holzer, J. C., Zurek, O., & Simpson, L. Case reviews in lone-actor terrorism incidents. Lone-actor terrorism : an integrated framework.

Chicago-referens (17:e uppl.)

Holzer, Jacob C., Olivia Zurek, och Lauren Simpson. "Case Reviews in Lone-actor Terrorism Incidents." Lone-actor Terrorism : An Integrated Framework .

MLA-referens (8:e uppl.)

Holzer, Jacob C., et al. "Case Reviews in Lone-actor Terrorism Incidents." Lone-actor Terrorism : An Integrated Framework, .