Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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