Sherrill, J. M., & Siegel, D. G. (1989). Responding to violence on campus. New directions for student services.
Cita Chicago Style (17a ed.)Sherrill, Jan M., y Dorothy G. Siegel. "Responding to Violence on Campus." New Directions for Student Services 1989.
Cita MLA (9a ed.)Sherrill, Jan M., y Dorothy G. Siegel. "Responding to Violence on Campus." New Directions for Student Services, 1989.
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