Style de citation APA (7e éd.)

Tranzillo, J. (2013). John Paul II on the Vulnerable. The Catholic University of America Press.

Style de citation Chicago (17e éd.)

Tranzillo, Jeffrey. John Paul II on the Vulnerable. Washington, D.C.: The Catholic University of America Press, 2013.

Style de citation MLA (8e éd.)

Tranzillo, Jeffrey. John Paul II on the Vulnerable. The Catholic University of America Press, 2013.