APA (7th ed.) Citation

Kempis a, T. (2004). The Inner Life. Penguin Books.

Chicago Style (17th ed.) Citation

Kempis a, Tomas. The Inner Life. England: Penguin Books, 2004.

MLA (9th ed.) Citation

Kempis a, Tomas. The Inner Life. Penguin Books, 2004.

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