APA (7th ed.) Citation

Parfit, D., & Scheffler, S. (2009). On what matters. Oxford University Press.

Chicago Style (17th ed.) Citation

Parfit, Derek, and Samuel Scheffler. On What Matters. Oxford: Oxford University Press, 2009.

MLA (8th ed.) Citation

Parfit, Derek, and Samuel Scheffler. On What Matters. Oxford University Press, 2009.

Warning: These citations may not always be 100% accurate.