Cita APA (7a ed.)

Douglas, K. S., & Webster, C. D. (1999). The HCR-20 violence risk assessment scheme: Concurrent validity in a sample of incarcerated offenders. Criminal justice and behavior, 26(1), 3-19.

Cita Chicago Style (17a ed.)

Douglas, Kevin S., y Christopher D. Webster. "The HCR-20 Violence Risk Assessment Scheme: Concurrent Validity in a Sample of Incarcerated Offenders." Criminal Justice and Behavior 26, no. 1 (1999): 3-19.

Cita MLA (8a ed.)

Douglas, Kevin S., y Christopher D. Webster. "The HCR-20 Violence Risk Assessment Scheme: Concurrent Validity in a Sample of Incarcerated Offenders." Criminal Justice and Behavior, vol. 26, no. 1, 1999, pp. 3-19.