Cita APA (7a ed.)

Clayton, R., & Tomlinson, H. (1997). Police actions: A practical guide. Wiley.

Cita Chicago Style (17a ed.)

Clayton, Richard, y Hugh Tomlinson. Police Actions: A Practical Guide. Chichester [u.a.]: Wiley, 1997.

Cita MLA (8a ed.)

Clayton, Richard, y Hugh Tomlinson. Police Actions: A Practical Guide. Wiley, 1997.