Emery, G., & Levering, M. (2009). The Trinity: An introduction to Catholic doctrine on the Triune God. Catholic University of America Press.

Emery, Gilles, and Matthew Levering. The Trinity: An Introduction to Catholic Doctrine on the Triune God. Washington, District of Columbia: Catholic University of America Press, 2009.

Emery, Gilles, and Matthew Levering. The Trinity: An Introduction to Catholic Doctrine on the Triune God. Catholic University of America Press, 2009.