Cita APA (7a ed.)

Grieve, J., Harfield, C., & MacVean, A. (2007). Policing. SAGE.

Cita Chicago Style (17a ed.)

Grieve, John, Clive Harfield, y Allyson MacVean. Policing. Los Angeles ; London: SAGE, 2007.

Cita MLA (9a ed.)

Grieve, John, et al. Policing. SAGE, 2007.