APA (7th ed.) Zitazioa
Warren, R. (2002). The purpose-driven life: What on earth am I here for? Oasis International LTD.
Chicago Style (17th ed.) Zitazioa
Warren, Richard. The Purpose-driven Life: What on Earth Am I Here for? Geneva: Oasis International LTD, 2002.
MLA (9th ed.) Zitazioa
Warren, Richard. The Purpose-driven Life: What on Earth Am I Here for? Oasis International LTD, 2002.
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