APA (7th ed.) Citation

Long, D. S. (2010). Christian ethics: A very short introduction. Very short introductions.

Chicago Style (17th ed.) Citation

Long, D. Stephen. "Christian Ethics: A Very Short Introduction." Very Short Introductions 2010.

MLA (9th ed.) Citation

Long, D. Stephen. "Christian Ethics: A Very Short Introduction." Very Short Introductions, 2010.

Warning: These citations may not always be 100% accurate.