Cita APA (7a ed.)

Haapanen, R., Houston-Hencken, K., & Duncan, M. (1991). Patterns of violent crime: A longitudinal investigation. State of California, Dep. of the Youth Authority, Research Div.

Cita Chicago Style (17a ed.)

Haapanen, Rudy, Kathy Houston-Hencken, y Mary Duncan. Patterns of Violent Crime: A Longitudinal Investigation. [Sacramento, Calif.]: State of California, Dep. of the Youth Authority, Research Div, 1991.

Cita MLA (9a ed.)

Haapanen, Rudy, et al. Patterns of Violent Crime: A Longitudinal Investigation. State of California, Dep. of the Youth Authority, Research Div, 1991.