APA (7th ed.) Citation

Geisler, N. L. (2012). The big book of christian apologetics. Baker Books.

Chicago Style (17th ed.) Citation

Geisler, Norman L. The Big Book of Christian Apologetics. Grand Rapids, MI: Baker Books, 2012.

MLA (9th ed.) Citation

Geisler, Norman L. The Big Book of Christian Apologetics. Baker Books, 2012.

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