APA

Knox R. A., . (1960). Retreat for beginners. New York: Sheed and Ward.

Chicago

Knox Ronald A, . 1960. Retreat for beginners. New York: Sheed and Ward.

Harvard

Knox R. A., . (1960). Retreat for beginners. New York: Sheed and Ward.

MLA

Knox Ronald A, . Retreat for beginners. New York: Sheed and Ward. 1960.