Catholic Church. Secretariatus ad Christianorum Unitatem Fovendam & Catholic Church. Secretariatus ad Christianorum Unitatem Fovendam. (1970). Directory for the application of the decisions of the Second Vatican Council concerning ecumenical matters, April 16, 1970. National Conference of Catholic Bishops.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Catholic Church. Secretariatus ad Christianorum Unitatem Fovendam و Catholic Church. Secretariatus ad Christianorum Unitatem Fovendam. Directory for the Application of the Decisions of the Second Vatican Council Concerning Ecumenical Matters, April 16, 1970. Washington, D.C.: National Conference of Catholic Bishops, 1970.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Catholic Church. Secretariatus ad Christianorum Unitatem Fovendam و Catholic Church. Secretariatus ad Christianorum Unitatem Fovendam. Directory for the Application of the Decisions of the Second Vatican Council Concerning Ecumenical Matters, April 16, 1970. National Conference of Catholic Bishops, 1970.