APA-viite (7. p.)

Warren, R. (2002). The purpose driven life: What on earth am I here for? Zondervan.

Chicago-viite (17. p.)

Warren, Rick. The Purpose Driven Life: What on Earth Am I Here for? Grand Rapids, Michigan: Zondervan, 2002.

MLA-viite (9. p.)

Warren, Rick. The Purpose Driven Life: What on Earth Am I Here for? Zondervan, 2002.