Cita APA (7a ed.)

Pepper, I. K., & Pepper, H. (2009). Keywords in policing. Open Univ. Press.

Cita Chicago Style (17a ed.)

Pepper, Ian K., y Helen Pepper. Keywords in Policing. Maidenhead [u.a.]: Open Univ. Press, 2009.

Cita MLA (8a ed.)

Pepper, Ian K., y Helen Pepper. Keywords in Policing. Open Univ. Press, 2009.