Cita APA (7a ed.)

Keating, K. (2001). Controversies: High-level Catholic apologetics. Ignatius Press.

Cita Chicago Style (17a ed.)

Keating, Karl. Controversies: High-level Catholic Apologetics. San Francisco: Ignatius Press, 2001.

Cita MLA (9a ed.)

Keating, Karl. Controversies: High-level Catholic Apologetics. Ignatius Press, 2001.