Holt, M. v. B. (2002). Meet Katharine Drexel: Heiress and God's servant of the oppressed. Charis Books/Servant Publications.
Chicago Style (17. basım) AtıfHolt, Mary van Balen. Meet Katharine Drexel: Heiress and God's Servant of the Oppressed. Ann Arbor, Mich.: Charis Books/Servant Publications, 2002.
MLA (8th ed.) AtıfHolt, Mary van Balen. Meet Katharine Drexel: Heiress and God's Servant of the Oppressed. Charis Books/Servant Publications, 2002.
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