APA (7e ed.) Bronvermelding

William, o. A., & Teske, R. J. (2011). Selected spiritual writings: Why God became man; On grace; On faith. Pontifical Institute of Mediaeval Studies.

Chicago (17e ed.) Bronvermelding

William, of Auvergne, en Roland J. Teske. Selected Spiritual Writings: Why God Became Man; On Grace; On Faith. Toronto, Ont.: Pontifical Institute of Mediaeval Studies, 2011.

MLA (8e ed.) Bronvermelding

William, of Auvergne, en Roland J. Teske. Selected Spiritual Writings: Why God Became Man; On Grace; On Faith. Pontifical Institute of Mediaeval Studies, 2011.