The popes of the modern ages from Pius IX to John Paul II - Mondin, Battista 1926-2015 (Urbaniana Univ. Press, 2004)
Giovanni Mastai Ferretti (1792-1878), Pope Pius IX; Karol Wojtyla (1920-), Pope Ioannes Paulus II. - Contains bibliographies. - On cover: The pontifical academy of sciences. - Biographies