Cita APA (7a ed.)

Maxfield, M. G., & Babbie, E. R. (2011). Research methods for criminal justice and criminology (6. ed.). Wadsworth, Cengage Learning.

Cita Chicago Style (17a ed.)

Maxfield, Michael G., y Earl R. Babbie. Research Methods for Criminal Justice and Criminology. 6. ed. Belmont, Calif: Wadsworth, Cengage Learning, 2011.

Cita MLA (9a ed.)

Maxfield, Michael G., y Earl R. Babbie. Research Methods for Criminal Justice and Criminology. 6. ed. Wadsworth, Cengage Learning, 2011.