Cita APA (7a ed.)

Knox, J., & MacDonald, S. (2001). Diary of a police officer. Police research series.

Cita Chicago Style (17a ed.)

Knox, Jim, y Stephen MacDonald. "Diary of a Police Officer." Police Research Series 2001.

Cita MLA (8a ed.)

Knox, Jim, y Stephen MacDonald. "Diary of a Police Officer." Police Research Series, 2001.