APA-Zitierstil (7. Ausg.)

Ambruzzi, A. (1948). A companion to the Spiritual exercises of Saint Ignatius (3rd ed.). Newman Press.

Chicago-Zitierstil (17. Ausg.)

Ambruzzi, Aloysius. A Companion to the Spiritual Exercises of Saint Ignatius. 3rd ed. Westminster, Md.: Newman Press, 1948.

MLA-Zitierstil (8. Ausg.)

Ambruzzi, Aloysius. A Companion to the Spiritual Exercises of Saint Ignatius. 3rd ed. Newman Press, 1948.