APA Style

Posset, F. (2004). The two-fold knowledge : readings on the knowledge of self & the knowledge of God selected & translated from the works of Saint Bernard of Clairvaux . Milwaukee: Marquette University Press.

MLA Style

Posset, Franz. "The two-fold knowledge : readings on the knowledge of self & the knowledge of God selected & translated from the works of Saint Bernard of Clairvaux". Milwaukee: Marquette University Press, 2004. Text.