Cita APA

Sproul, R. C. (2003). Defending your Faith: An introduction to apologetics. Crossway.

Citación estilo Chicago

Sproul, R. C. Defending Your Faith: An Introduction to Apologetics. Wheaton, IL: Crossway, 2003.

Cita MLA

Sproul, R. C. Defending Your Faith: An Introduction to Apologetics. Crossway, 2003.

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