APA-referens (7:e uppl.)

Cashen, R. A. (1981). Solitude in the thought of Thomas Merton. Cistercian Publications.

Chicago-referens (17:e uppl.)

Cashen, Richard Anthony. Solitude in the Thought of Thomas Merton. Kalamazoo, Mich.: Cistercian Publications, 1981.

MLA-referens (8:e uppl.)

Cashen, Richard Anthony. Solitude in the Thought of Thomas Merton. Cistercian Publications, 1981.