APA

MERTON T., . (1993). The Courage for Truth: the letters of Thomas Merton. Farrar: New York.

Chicago

MERTON Thomas, . 1993. The Courage for Truth: the letters of Thomas Merton. Farrar: New York.

Harvard

MERTON T., . (1993). The Courage for Truth: the letters of Thomas Merton. Farrar: New York.

MLA

MERTON Thomas, . The Courage for Truth: the letters of Thomas Merton. Farrar: New York. 1993.