APA (7th ed.) Citation

Warren, R. (2003). The purpose driven life: What on earth am i here for? OMF Literature.

Chicago Style (17th ed.) Citation

Warren, Richard. The Purpose Driven Life: What on Earth Am I Here for? Metro Manila: OMF Literature, 2003.

MLA (9th ed.) Citation

Warren, Richard. The Purpose Driven Life: What on Earth Am I Here for? OMF Literature, 2003.