APA (7th ed.) Citation

Barron, R. (2011). Catholicism: A journey to the heart of the faith. Image Books.

Chicago Style (17th ed.) Citation

Barron, Robert. Catholicism: A Journey to the Heart of the Faith. New York [etc.]: Image Books, 2011.

MLA (9th ed.) Citation

Barron, Robert. Catholicism: A Journey to the Heart of the Faith. Image Books, 2011.

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