Cita APA (7a ed.)

Hagan, F. E. (1989). Research methods in criminal justice and criminology (2. ed.). Macmillan [u.a.].

Cita Chicago Style (17a ed.)

Hagan, Frank E. Research Methods in Criminal Justice and Criminology. 2. ed. New York: Macmillan [u.a.], 1989.

Cita MLA (8a ed.)

Hagan, Frank E. Research Methods in Criminal Justice and Criminology. 2. ed. Macmillan [u.a.], 1989.