Cita APA (7a ed.)

Laybourn, K., & Taylor, D. (2011). Policing in England and Wales, 1918 - 39: The fed, flying squads and forensics. Palgrave Macmillan.

Cita Chicago Style (17a ed.)

Laybourn, Keith, y David Taylor. Policing in England and Wales, 1918 - 39: The Fed, Flying Squads and Forensics. Basingstoke [u.a.]: Palgrave Macmillan, 2011.

Cita MLA (8a ed.)

Laybourn, Keith, y David Taylor. Policing in England and Wales, 1918 - 39: The Fed, Flying Squads and Forensics. Palgrave Macmillan, 2011.