APA (7th ed.) Citation

Neff, D. (1989). Tough questions Christians ask. Victor Books.

Chicago Style (17th ed.) Citation

Neff, David. Tough Questions Christians Ask. Wheaton, Illinois: Victor Books, 1989.

MLA (8th ed.) Citation

Neff, David. Tough Questions Christians Ask. Victor Books, 1989.

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