APA (7th ed.) Citation

Crank, J. P., & Crank, J. P. (2011). Policing, toward an unknown future. Routledge.

Chicago Style (17th ed.) Citation

Crank, John P., and John P. Crank. Policing, Toward an Unknown Future. London [u.a.]: Routledge, 2011.

MLA (8th ed.) Citation

Crank, John P., and John P. Crank. Policing, Toward an Unknown Future. Routledge, 2011.