APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

Warren, Rick. The Purpose Driven Life: What on Earth Am I Here for? Metro Manila: OMF Literature, Inc, 2002.

MLA (9th ed.) Citation

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