Cita APA (7a ed.)

Astor, R., Wallace, J., Fravil, K., & Behre, W. (1997). Perceptions of school violence as a problem and reports of violent events: A national survey of school social workers. Social work, 42(1), 55-68. doi:10.1093/sw/42.1.55

Cita Chicago Style (17a ed.)

Astor, R.A, J.M Wallace, K.A Fravil, y W.J Behre. "Perceptions of School Violence as a Problem and Reports of Violent Events: A National Survey of School Social Workers." Social Work 42, no. 1 (1997): 55-68. https://doi.org/10.1093/sw/42.1.55.

Cita MLA (9a ed.)

Astor, R.A, et al. "Perceptions of School Violence as a Problem and Reports of Violent Events: A National Survey of School Social Workers." Social Work, vol. 42, no. 1, 1997, pp. 55-68, https://doi.org/10.1093/sw/42.1.55.