Cita APA (7a ed.)

Daniels, J. A., & Bradley, M. C. (2011). Preventing lethal school violence. Springer.

Cita Chicago Style (17a ed.)

Daniels, Jeffrey A., y Mary C. Bradley. Preventing Lethal School Violence. New York Heidelberg [u.a.]: Springer, 2011.

Cita MLA (8a ed.)

Daniels, Jeffrey A., y Mary C. Bradley. Preventing Lethal School Violence. Springer, 2011.