Merton, T., & Daggy, R. E. (1989). The road to joy: The letters of Thomas Merton to new and old friends. Farrar, Straus, Giroux.
Chicago-viite (17. p.)Merton, Thomas, ja Robert E. Daggy. The Road to Joy: The Letters of Thomas Merton to New and Old Friends. New York: Farrar, Straus, Giroux, 1989.
MLA-viite (8. p.)Merton, Thomas, ja Robert E. Daggy. The Road to Joy: The Letters of Thomas Merton to New and Old Friends. Farrar, Straus, Giroux, 1989.
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