APA (7th ed.) Citation

Smith, P. K., Pepler, D., & Rigby, K. Bullying in schools: How successful can interventions be.

Chicago Style (17th ed.) Citation

Smith, Peter K., Debra Pepler, and Ken Rigby. Bullying in Schools: How Successful Can Interventions Be.

MLA (8th ed.) Citation

Smith, Peter K., et al. Bullying in Schools: How Successful Can Interventions Be.