APA (7th ed.) Citation

Bryett, K. (1993). An introduction to policing. An introduction to policing.

Chicago Style (17th ed.) Citation

Bryett, Keith. "An Introduction to Policing." An Introduction to Policing 1993.

MLA (9th ed.) Citation

Bryett, Keith. "An Introduction to Policing." An Introduction to Policing, 1993.

Warning: These citations may not always be 100% accurate.