Denery, D. G. (2005). Seeing and being seen in the later medieval world: Optics, theology, and religious life. Cambridge University Press.

Denery, Dallas G. Seeing and Being Seen in the Later Medieval World: Optics, Theology, and Religious Life. New York: Cambridge University Press, 2005.

Denery, Dallas G. Seeing and Being Seen in the Later Medieval World: Optics, Theology, and Religious Life. Cambridge University Press, 2005.