Cita APA (7a ed.)

Dix, M. C., & Layzell, A. D. (1983). Road users and the police. Croom Helm.

Cita Chicago Style (17a ed.)

Dix, Martin C., y A. D. Layzell. Road Users and the Police. London [u.a.]: Croom Helm, 1983.

Cita MLA (9a ed.)

Dix, Martin C., y A. D. Layzell. Road Users and the Police. Croom Helm, 1983.