Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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