APA-referens (7:e uppl.)
Johnson, T. J. (2012). The soul in ascent: Bonaventure on poverty, prayer, and union with God (Revised, second edition.). Franciscan Institute Publications.
Chicago-referens (17:e uppl.)
Johnson, Timothy J. The Soul in Ascent: Bonaventure on Poverty, Prayer, and Union with God. Revised, second edition. St. Bonaventure, New York: Franciscan Institute Publications, 2012.
MLA-referens (9:e uppl.)
Johnson, Timothy J. The Soul in Ascent: Bonaventure on Poverty, Prayer, and Union with God. Revised, second edition. Franciscan Institute Publications, 2012.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.