Cita APA (7a ed.)

Barker, T. (2014). Outlaw motorcycle gangs as organized crime groups. Springer.

Cita Chicago Style (17a ed.)

Barker, Thomas. Outlaw Motorcycle Gangs as Organized Crime Groups. Cham Heidelberg [u.a.]: Springer, 2014.

Cita MLA (8a ed.)

Barker, Thomas. Outlaw Motorcycle Gangs as Organized Crime Groups. Springer, 2014.