Nouwen, H. J. M. (1991). Thomas Merton, contemplative critic. Triumph Books.
Lua i Stíl Chicago (17ú heag.)Nouwen, Henri J. M. Thomas Merton, Contemplative Critic. New York, N.Y.: Triumph Books, 1991.
Lua MLA (8ú heag.)Nouwen, Henri J. M. Thomas Merton, Contemplative Critic. Triumph Books, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.