Cita APA (7th ed.)
Hood, R. G., & Sparks, R. F. (1970). Key issues in criminology. Weidenfeld & Nicolson.
Cita Chicago (17th ed.)
Hood, Roger G., i Richard F. Sparks. Key Issues in Criminology. London: Weidenfeld & Nicolson, 1970.
Cita MLA (9th ed.)
Hood, Roger G., i Richard F. Sparks. Key Issues in Criminology. Weidenfeld & Nicolson, 1970.
Atenció: Aquestes cites poden no estar 100% correctes.