APA način citiranja (7. izdanje)

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

Čikaški stil citiranja (17. izdanje)

Pepper, Ian K., i Helen Pepper. Keywords in Policing. Maidenhead, Berkshire, Eng.: Open University Press, 2009.

MLA način citiranja (9. izdanje)

Pepper, Ian K., i Helen Pepper. Keywords in Policing. Open University Press, 2009.