APA
Hales E., . (1954). Pio Nono: A Study in European politics and Religion in the Nineteenth century. New York: P.J. Kenedy and Sons.
Chicago
Hales E.E.Y, . 1954. Pio Nono: A Study in European politics and Religion in the Nineteenth century. New York: P.J. Kenedy and Sons.
Harvard
Hales E., . (1954). Pio Nono: A Study in European politics and Religion in the Nineteenth century. New York: P.J. Kenedy and Sons.
MLA
Hales E.E.Y, . Pio Nono: A Study in European politics and Religion in the Nineteenth century. New York: P.J. Kenedy and Sons. 1954.
