APA (7 ম সংস্করণ) উদ্ধৃতি

Catholic Church. Pope (1939-1958 : Pius XII). (1939). Summi pontificatus: Encyclical letter exhorting unity in opposing world evils. Paulist Press.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Catholic Church. Pope (1939-1958 : Pius XII). Summi Pontificatus: Encyclical Letter Exhorting Unity in Opposing World Evils. [New York: Paulist Press, 1939.

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

Catholic Church. Pope (1939-1958 : Pius XII). Summi Pontificatus: Encyclical Letter Exhorting Unity in Opposing World Evils. Paulist Press, 1939.