APA (7th ed.) Citation

Spaemann, R., & O'Donovan, O. (2006). Persons: The difference between 'someone' and 'something'. Oxford University Press.

Chicago Style (17th ed.) Citation

Spaemann, Robert, and Oliver O'Donovan. Persons: The Difference Between 'Someone' and 'Something'. New York: Oxford University Press, 2006.

MLA (8th ed.) Citation

Spaemann, Robert, and Oliver O'Donovan. Persons: The Difference Between 'Someone' and 'Something'. Oxford University Press, 2006.