APA (7th ed.) Citation

Agger, B., Luke, T. W., & Agger, B. (2008). There is a gunman on campus: Tragedy and terror at Virginia Tech. Rowman & Littlefield.

Chicago Style (17th ed.) Citation

Agger, Ben, Timothy W. Luke, and Ben Agger. There Is a Gunman on Campus: Tragedy and Terror at Virginia Tech. Lanham, Md. [u.a.]: Rowman & Littlefield, 2008.

MLA (8th ed.) Citation

Agger, Ben, et al. There Is a Gunman on Campus: Tragedy and Terror at Virginia Tech. Rowman & Littlefield, 2008.