Cita APA (7a ed.)

Forde, D. R., Kennedy, L. W., & Silverman, R. A. (1990). Age and homicide in Canada: A multi-level analysis. Discussion paper.

Cita Chicago Style (17a ed.)

Forde, David R., Leslie W. Kennedy, y Robert A. Silverman. "Age and Homicide in Canada: A Multi-level Analysis." Discussion Paper 1990.

Cita MLA (9a ed.)

Forde, David R., et al. "Age and Homicide in Canada: A Multi-level Analysis." Discussion Paper, 1990.