APA (7th ed.) Citation

Lillie, W. (2021). An introduction to ethics (this edition first published in 2021.). Routledge.

Chicago Style (17th ed.) Citation

Lillie, William. An Introduction to Ethics. this edition first published in 2021. London and New York: Routledge, 2021.

MLA (9th ed.) Citation

Lillie, William. An Introduction to Ethics. this edition first published in 2021. Routledge, 2021.