APA (7th ed.) Citation

Blackburn, S., & Blackburn, S. (2003). Ethics: A very short introduction. Oxford University Press.

Chicago Style (17th ed.) Citation

Blackburn, Simon, and Simon Blackburn. Ethics: A Very Short Introduction. Oxford: Oxford University Press, 2003.

MLA (9th ed.) Citation

Blackburn, Simon, and Simon Blackburn. Ethics: A Very Short Introduction. Oxford University Press, 2003.