Warren, R. (2002). The purpose driven life: What on earth am I here for? OMF Literature, Inc.
芝加哥风格引文Warren, Rick. The Purpose Driven Life: What on Earth Am I Here for? Metro Manila: OMF Literature, Inc, 2002.
MLA引文Warren, Rick. The Purpose Driven Life: What on Earth Am I Here for? OMF Literature, Inc, 2002.
警告：这些引文格式不一定是100％准确.