Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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