APA (7th ed.) Citation

Brown, S., Collinson, D., & Wilkinson, R. (2002). Biographical dictionary of twentieth-century philosophers. Routledge.

Chicago Style (17th ed.) Citation

Brown, Stuart, Diane Collinson, and Robert Wilkinson. Biographical Dictionary of Twentieth-century Philosophers. London: Routledge, 2002.

MLA (9th ed.) Citation

Brown, Stuart, et al. Biographical Dictionary of Twentieth-century Philosophers. Routledge, 2002.