Cita APA (7a ed.)

Walker, N. (1971). Crimes, courts and figures: An introd. to criminal statistics. Penguin Books.

Cita Chicago Style (17a ed.)

Walker, Nigel. Crimes, Courts and Figures: An Introd. to Criminal Statistics. Harmondsworth: Penguin Books, 1971.

Cita MLA (8a ed.)

Walker, Nigel. Crimes, Courts and Figures: An Introd. to Criminal Statistics. Penguin Books, 1971.