APA (7th ed.) Citation

Prior, W. J. (1991). Virtue and knowledge: An introduction to ancient Greek ethics. Routledge.

Chicago Style (17th ed.) Citation

Prior, William J. Virtue and Knowledge: An Introduction to Ancient Greek Ethics. London [etc.]: Routledge, 1991.

MLA (9th ed.) Citation

Prior, William J. Virtue and Knowledge: An Introduction to Ancient Greek Ethics. Routledge, 1991.