Nouwen, H. J. M. (1981). Thomas Merton, contemplative critic. Harper & Row.
Lua i Stíl Chicago (17ú heag.)Nouwen, Henri J. M. Thomas Merton, Contemplative Critic. San Francisco: Harper & Row, 1981.
Lua MLA (8ú heag.)Nouwen, Henri J. M. Thomas Merton, Contemplative Critic. Harper & Row, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.