APA (7th ed.) Citation

Hornby. (2001). How to be good. Penguin Books.

Chicago Style (17th ed.) Citation

Hornby. How to Be Good. London: Penguin Books, 2001.

MLA (8th ed.) Citation

Hornby. How to Be Good. Penguin Books, 2001.

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