William, o. A., & Teske, R. J. (2011). Selected spiritual writings: Why God became man; On grace; On faith. Pontifical Institute of Mediaeval Studies.
Παραπομπή σε μορφή Chicago (17η εκδ.)William, of Auvergne, και Roland J. Teske. Selected Spiritual Writings: Why God Became Man; On Grace; On Faith. Toronto, Ont.: Pontifical Institute of Mediaeval Studies, 2011.
Παραπομπή σε μορφή MLA (8th εκδ.)William, of Auvergne, και Roland J. Teske. Selected Spiritual Writings: Why God Became Man; On Grace; On Faith. Pontifical Institute of Mediaeval Studies, 2011.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.