Sproul, R. C. (2003). Defending your Faith: An introduction to apologetics. Crossway.
Cita Chicago Style (17a ed.)Sproul, R. C. Defending Your Faith: An Introduction to Apologetics. Wheaton, IL: Crossway, 2003.
Cita MLA (9a ed.)Sproul, R. C. Defending Your Faith: An Introduction to Apologetics. Crossway, 2003.
Precaución: Estas citas no son 100% exactas.