Fidei, C. C. C. p. D. (1973). Declaration in defence of the Catholic doctrine on the Church against certain errors of the present day. Boston.
Chicago Style (17th ed.) CitationFidei, Catholic Church. Congregatio pro Doctrina. Declaration in Defence of the Catholic Doctrine on the Church Against Certain Errors of the Present Day. Boston, 1973.
MLA (8th ed.) CitationFidei, Catholic Church. Congregatio pro Doctrina. Declaration in Defence of the Catholic Doctrine on the Church Against Certain Errors of the Present Day. Boston, 1973.
Warning: These citations may not always be 100% accurate.