APA (7th ed.) Citation

Blatchford, P., & Sharp, S. (1994). Breaktime and the school: Understanding and changing playground behaviour. Routledge.

Chicago Style (17th ed.) Citation

Blatchford, Peter, and Sonia Sharp. Breaktime and the School: Understanding and Changing Playground Behaviour. London: Routledge, 1994.

MLA (9th ed.) Citation

Blatchford, Peter, and Sonia Sharp. Breaktime and the School: Understanding and Changing Playground Behaviour. Routledge, 1994.