Παραπομπή σε μορφή APA (7η εκδ.)

Callahan, A. (1992). Spiritual guides for today: Evelyn Underhill, Dorothy Day, Karl Rahner, Simone Weil, Thomas Merton, Henri Nouwen. Crossroad.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Callahan, Annice. Spiritual Guides for Today: Evelyn Underhill, Dorothy Day, Karl Rahner, Simone Weil, Thomas Merton, Henri Nouwen. New York: Crossroad, 1992.

Παραπομπή σε μορφή MLA (8th εκδ.)

Callahan, Annice. Spiritual Guides for Today: Evelyn Underhill, Dorothy Day, Karl Rahner, Simone Weil, Thomas Merton, Henri Nouwen. Crossroad, 1992.