APA (7th ed.) Citation

Catholic Church. Pope. (1963). Seven great encyclicals. Paulist Press.

Chicago Style (17th ed.) Citation

Catholic Church. Pope. Seven Great Encyclicals. Glen Rock, N. J.: Paulist Press, 1963.

MLA (8th ed.) Citation

Catholic Church. Pope. Seven Great Encyclicals. Paulist Press, 1963.

Warning: These citations may not always be 100% accurate.