Cita APA (7a ed.)

Warner, B. S., & Weist, M. D. (1999). Risk factors for school violence.

Cita Chicago Style (17a ed.)

Warner, B. S., y M. D. Weist. Risk Factors for School Violence. 1999.

Cita MLA (8a ed.)

Warner, B. S., y M. D. Weist. Risk Factors for School Violence. 1999.