APA (7th ed.) Citation

Catholic Church. Pope (1963-1978 : Paul VI). (1965). Mysterium fidei: Litterae encyclicae summi pontificis Pauli Papae VI. Polyglottis Vaticanis.

Chicago Style (17th ed.) Citation

Catholic Church. Pope (1963-1978 : Paul VI). Mysterium Fidei: Litterae Encyclicae Summi Pontificis Pauli Papae VI. [Rome]: Polyglottis Vaticanis, 1965.

MLA (8th ed.) Citation

Catholic Church. Pope (1963-1978 : Paul VI). Mysterium Fidei: Litterae Encyclicae Summi Pontificis Pauli Papae VI. Polyglottis Vaticanis, 1965.

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