APA (7th ed.) Citation
Sproul, R. (1978). If there is God, why are there atheist. Bethany.
Chicago Style (17th ed.) Citation
Sproul, R.C. If There Is God, Why Are There Atheist. Minnesota: Bethany, 1978.
MLA (9th ed.) Citation
Sproul, R.C. If There Is God, Why Are There Atheist. Bethany, 1978.
Warning: These citations may not always be 100% accurate.