Cita APA (7a ed.)

Roach, J. (1985). Police and public order in Europe. Croom Helm.

Cita Chicago Style (17a ed.)

Roach, John. Police and Public Order in Europe. London [u.a.]: Croom Helm, 1985.

Cita MLA (8a ed.)

Roach, John. Police and Public Order in Europe. Croom Helm, 1985.