Vettori, A. (2004). Poets of divine love: Franciscan mystical poetry of the thirteenth century. Fordham University Press.

Vettori, Alessandro. Poets of Divine Love: Franciscan Mystical Poetry of the Thirteenth Century. New York: Fordham University Press, 2004.

Vettori, Alessandro. Poets of Divine Love: Franciscan Mystical Poetry of the Thirteenth Century. Fordham University Press, 2004.