Hart, P. (1981). The message of Thomas Merton. Cistercian Publications.
Lua i Stíl Chicago (17ú heag.)Hart, Patrick. The Message of Thomas Merton. Kalamazoo, Mich.: Cistercian Publications, 1981.
Lua MLA (8ú heag.)Hart, Patrick. The Message of Thomas Merton. Cistercian Publications, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.