APA (7th ed.) Citation

Allen, N., & Bartle, J. (2011). Britain at the polls 2010. Sage.

Chicago Style (17th ed.) Citation

Allen, Nicholas, and John Bartle. Britain at the Polls 2010. London ; Thousand Oaks, Calif.: Sage, 2011.

MLA (9th ed.) Citation

Allen, Nicholas, and John Bartle. Britain at the Polls 2010. Sage, 2011.