Ptolemy

	Epiphanius, Against Heresies 33.3-8.
	Werner Foester & R. McL. Wilson, eds. Gnosis: A Selection of Gnostic Texts, 2 Vols. Oxford: Clarendon, 1972-1974. Hbk. ISBN: 0198264348. pp.121-161. {Amazon.com}
	Irenaeus, Against Heresies 1.1-9.
	Justin Martyr, 2 Apology 2.1-9 (= Eusebius, Church History 4.17)
	Ptolemy's Commentary on The Gospel Of John Prologue (The Gnostic Society Library)

	Ptolemy the Gnostic (The Catholic Encyclopedia)
	F.L. Cross, The Early Christian Fathers. Studies in Theology 1. London: Gerald Duckworth & Co. Ltd., 1960. Hbk. pp.37-38.
	Karl Froehlich, Biblical Interpretation in the Early Church. Philadelphia: Fortress, 1985. Pbk. ISBN: 0800614143. pp.37-43. {Amazon.com}
	Robert M. Grant, " A Woman of Rome: The Matron in Justin, 2 Apology 2.1-9," Church History 54 (1985): 461-472.



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