APA-referens (7:e uppl.)

Hart, P. (1981). The message of Thomas Merton. Cistercian Publications.

Chicago-referens (17:e uppl.)

Hart, Patrick. The Message of Thomas Merton. Kalamazoo, Mich.: Cistercian Publications, 1981.

MLA-referens (8:e uppl.)

Hart, Patrick. The Message of Thomas Merton. Cistercian Publications, 1981.