Blet, P. (1999). Pius XII and the Second World War: According to the Archives of the Vatican. Paulist Press.
Citazione stile Chigago Style (17a edizione)Blet, Pierre. Pius XII and the Second World War: According to the Archives of the Vatican. New York: Paulist Press, 1999.
Citatione MLA (8a ed.)Blet, Pierre. Pius XII and the Second World War: According to the Archives of the Vatican. Paulist Press, 1999.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.