APA (7th ed.) Citation

Clarke, C., James, T. S., Bale, T., & Diamond, P. (2015). British Conservative leaders. Biteback Publishing.

Chicago Style (17th ed.) Citation

Clarke, Charles, Toby S. James, Tim Bale, and Patrick Diamond. British Conservative Leaders. London: Biteback Publishing, 2015.

MLA (9th ed.) Citation

Clarke, Charles, et al. British Conservative Leaders. Biteback Publishing, 2015.