APA (7th ed.) Citation

Catholic Church. Pope (1878-1903 : Leo XIII), Treacy, G. C., & Leo XIII, P. (1945). Liberty: Man's greatest gift! Paulist Press.

Chicago Style (17th ed.) Citation

Catholic Church. Pope (1878-1903 : Leo XIII), Gerald C. Treacy, and Pope Leo XIII. Liberty: Man's Greatest Gift! New York: Paulist Press, 1945.

MLA (8th ed.) Citation

Catholic Church. Pope (1878-1903 : Leo XIII), et al. Liberty: Man's Greatest Gift! Paulist Press, 1945.