Cita APA (7a ed.)

McCall, G. J. (1978). Observing the Law: Field methods in the study of crime and the criminal justice system. The Free Press.

Cita Chicago Style (17a ed.)

McCall, George J. Observing the Law: Field Methods in the Study of Crime and the Criminal Justice System. New York: The Free Press, 1978.

Cita MLA (8a ed.)

McCall, George J. Observing the Law: Field Methods in the Study of Crime and the Criminal Justice System. The Free Press, 1978.