APA (7th ed.) Citation
Hubbard, D. A. (1972). The problem with prayer is... Tyndale.
Chicago Style (17th ed.) Citation
Hubbard, David A. The Problem with Prayer Is... Wheaton: Tyndale, 1972.
MLA (9th ed.) Citation
Hubbard, David A. The Problem with Prayer Is... Tyndale, 1972.
Warning: These citations may not always be 100% accurate.