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.
Chicago Style (17. basım) AtıfCatholic Church. Secretariatus ad Christianorum Unitatem Fovendam ve 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.
MLA (8th ed.) AtıfCatholic Church. Secretariatus ad Christianorum Unitatem Fovendam ve 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.