Cita APA (7a ed.)

Markos, L. (2010). Apologetics for the twenty-first century. Crossway.

Cita Chicago Style (17a ed.)

Markos, Louis. Apologetics for the Twenty-first Century. Wheaton, Illinois: Crossway, 2010.

Cita MLA (9a ed.)

Markos, Louis. Apologetics for the Twenty-first Century. Crossway, 2010.