APA (7th ed.) Citation

Fidei, C. C. C. p. D. (1979). Letter on Certain Questions Concerning Eschatology. Vatican City.

Chicago Style (17th ed.) Citation

Fidei, Catholic Church. Congregatio pro Doctrina. Letter on Certain Questions Concerning Eschatology. Vatican City, 1979.

MLA (8th ed.) Citation

Fidei, Catholic Church. Congregatio pro Doctrina. Letter on Certain Questions Concerning Eschatology. Vatican City, 1979.

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