Cita APA (7th ed.)
Jeffrey A. Daniels, M. C. B. Preventing Lethal School Violence. Springer.
Cita Chicago (17th ed.)
Jeffrey A. Daniels, Mary C. Bradley. Preventing Lethal School Violence. Nueva York, EUA: Springer.
Cita MLA (9th ed.)
Jeffrey A. Daniels, Mary C. Bradley. Preventing Lethal School Violence. Springer.
Atenció: Aquestes cites poden no estar 100% correctes.