“Paolo Valvo, Pio XI E La Cristiada. Fede, Guerra E Diplomacia in Messico (1926-1929), Morcelliana, Brescia 2016, 540 Pp”. Anuario de Historia de la Iglesia 26 (May 22, 2017): 623. Accessed July 15, 2025. https://revistas.unav.edu/index.php/anuario-de-historia-iglesia/article/view/9307.