Lua APA (7ú heag.)

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

Lua i Stíl Chicago (17ú heag.)

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

Lua MLA (8ú heag.)

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

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.