Cita APA (7a ed.)

Hagan, F. E. (2014). Research methods in criminal justice and criminology. Pearson Education Limited.

Cita Chicago Style (17a ed.)

Hagan, Frank E. Research Methods in Criminal Justice and Criminology. Harlow: Pearson Education Limited, 2014.

Cita MLA (8a ed.)

Hagan, Frank E. Research Methods in Criminal Justice and Criminology. Pearson Education Limited, 2014.