Cita APA (7th ed.)
Tranzillo, J. (2013). John Paul II on the vulnerable. Catholic University of America Press.
Cita Chicago (17th ed.)
Tranzillo, Jeffrey. John Paul II on the Vulnerable. Washington, D.C.: Catholic University of America Press, 2013.
Cita MLA (9th ed.)
Tranzillo, Jeffrey. John Paul II on the Vulnerable. Catholic University of America Press, 2013.
Atenció: Aquestes cites poden no estar 100% correctes.