Cita APA (7a ed.)

Friedman, W. (1998). Volunteerism and the decline of violent crime. The journal of criminal law and criminology, 88(4), 1453-1474.

Cita Chicago Style (17a ed.)

Friedman, Warren. "Volunteerism and the Decline of Violent Crime." The Journal of Criminal Law and Criminology 88, no. 4 (1998): 1453-1474.

Cita MLA (8a ed.)

Friedman, Warren. "Volunteerism and the Decline of Violent Crime." The Journal of Criminal Law and Criminology, vol. 88, no. 4, 1998, pp. 1453-1474.