Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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