APA (7th ed.) Zitazioa
Graf, J. L. (2002). The power of personal prayer: Learning to pray with faith and purpose. NavPress.
Chicago Style (17th ed.) Zitazioa
Graf, Jonathan L. The Power of Personal Prayer: Learning to Pray with Faith and Purpose. Colorado Springs, Colo.: NavPress, 2002.
MLA (9th ed.) Zitazioa
Graf, Jonathan L. The Power of Personal Prayer: Learning to Pray with Faith and Purpose. NavPress, 2002.
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