Pappalardo, M. (2010). Advent and Christmas with the church fathers. Libreria Editrice Vaticana ; United States Conference of Catholic Bishops.
Chicago-referens (17:e uppl.)Pappalardo, Marco. Advent and Christmas with the Church Fathers. [Vatican City] : Washington, D.C.: Libreria Editrice Vaticana ; United States Conference of Catholic Bishops, 2010.
MLA-referens (8:e uppl.)Pappalardo, Marco. Advent and Christmas with the Church Fathers. Libreria Editrice Vaticana ; United States Conference of Catholic Bishops, 2010.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.