William, o. A., & Teske, R. J. (2011). Selected spiritual writings: Why God became man; On grace; On faith. Pontifical Institute of Mediaeval Studies.
Chicago-referens (17:e uppl.)William, of Auvergne, och Roland J. Teske. Selected Spiritual Writings: Why God Became Man; On Grace; On Faith. Toronto, Ont.: Pontifical Institute of Mediaeval Studies, 2011.
MLA-referens (8:e uppl.)William, of Auvergne, och Roland J. Teske. Selected Spiritual Writings: Why God Became Man; On Grace; On Faith. Pontifical Institute of Mediaeval Studies, 2011.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.