APA (7th ed.) Citation

Prichard, H. A., & Urmson, J. O. (1971). Moral obligation: And duty and interest. Oxford University Press.

Chicago Style (17th ed.) Citation

Prichard, Harold Arthur, and James Opie Urmson. Moral Obligation: And Duty and Interest. London [etc.]: Oxford University Press, 1971.

MLA (9th ed.) Citation

Prichard, Harold Arthur, and James Opie Urmson. Moral Obligation: And Duty and Interest. Oxford University Press, 1971.