Cita APA (7a ed.)

Schildkraut, J., Muschert, G. W., & DeAngelis, F. (2019). Columbine, 20 years later and beyond: Lessons from tragedy. Praeger.

Cita Chicago Style (17a ed.)

Schildkraut, Jaclyn, Glenn W. Muschert, y Frank DeAngelis. Columbine, 20 Years Later and Beyond: Lessons from Tragedy. Santa Barbara, California Denver, Colorado: Praeger, 2019.

Cita MLA (9a ed.)

Schildkraut, Jaclyn, et al. Columbine, 20 Years Later and Beyond: Lessons from Tragedy. Praeger, 2019.