Cita APA (7a ed.)

Walker, H. M., & Epstein, M. H. (2001). Making schools safer and violence free: Critical issues, solutions, and recommended practices. Pro-Ed.

Cita Chicago Style (17a ed.)

Walker, Hill M., y Michael H. Epstein. Making Schools Safer and Violence Free: Critical Issues, Solutions, and Recommended Practices. Austin: Pro-Ed, 2001.

Cita MLA (9a ed.)

Walker, Hill M., y Michael H. Epstein. Making Schools Safer and Violence Free: Critical Issues, Solutions, and Recommended Practices. Pro-Ed, 2001.