Merton, T. (1950). What are these wounds?: The life of a Cistercian mystic, Saint Lutgarde of Aywieres. Bruce.
Chicago-referens (17:e uppl.)Merton, Thomas. What Are These Wounds?: The Life of a Cistercian Mystic, Saint Lutgarde of Aywieres. Milwaukee: Bruce, 1950.
MLA-referens (8:e uppl.)Merton, Thomas. What Are These Wounds?: The Life of a Cistercian Mystic, Saint Lutgarde of Aywieres. Bruce, 1950.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.