APA (7th ed.) Citation

Parfit, D., & Scheffler, S. (2011). On what matters, volume one. Oxford University Press. https://doi.org/10.1093/acprof:osobl/9780199572809.001.0001

Chicago Style (17th ed.) Citation

Parfit, Derek, and Samuel Scheffler. On What Matters, Volume One. Oxford: Oxford University Press, 2011. https://doi.org/10.1093/acprof:osobl/9780199572809.001.0001.

MLA (9th ed.) Citation

Parfit, Derek, and Samuel Scheffler. On What Matters, Volume One. Oxford University Press, 2011. https://doi.org/10.1093/acprof:osobl/9780199572809.001.0001.