Cita APA (7a ed.)

Hess, K. M., & Wrobleski, H. M. (1993). Police operations. West Pub. Co.

Cita Chicago Style (17a ed.)

Hess, Kären M., y Henry M. Wrobleski. Police Operations. St. Paul [u.a.]: West Pub. Co, 1993.

Cita MLA (9a ed.)

Hess, Kären M., y Henry M. Wrobleski. Police Operations. West Pub. Co, 1993.