Cita APA (7a ed.)

Ttofi, M. M., & Farrington, D. (2009). What works in preventing bullying: Effective elements of anti-bullying programmes. Journal of aggression, conflict and peace research, 1(1), 13-24. doi:10.1108/17596599200900003

Cita Chicago Style (17a ed.)

Ttofi, Maria M., y David Farrington. "What Works in Preventing Bullying: Effective Elements of Anti-bullying Programmes." Journal of Aggression, Conflict and Peace Research 1, no. 1 (2009): 13-24. https://doi.org/10.1108/17596599200900003.

Cita MLA (9a ed.)

Ttofi, Maria M., y David Farrington. "What Works in Preventing Bullying: Effective Elements of Anti-bullying Programmes." Journal of Aggression, Conflict and Peace Research, vol. 1, no. 1, 2009, pp. 13-24, https://doi.org/10.1108/17596599200900003.