1. G. Nicephorus,Church history, inPatrologiae Graecae, J.P. Migne, ed., Vol. 148, Saeculum 1340, Migne, Paris, 1865 (in Greek with parallel Latin translation, cols. 469, 470)
2. K.S. Guthrie, ed. and trans.The Pythagorean Sourcebook and Library: An Anthology of Ancient Writings Which Relate to Pythagoras and Pythagorean Philosophy, Phanes, Grand Rapids, MI, 1987