APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Sage Publications, Nicholas Allen, and John Bartle. Britain at the Polls 2010. Los Angeles, [Calif.] ; London: SAGE, 2011.

MLA (9th ed.) Citation

Sage Publications, et al. Britain at the Polls 2010. SAGE, 2011.