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.
Citação do estilo Chicago (17ª ed.)Catholic Church. Secretariatus ad Christianorum Unitatem Fovendam e 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.
Citação MLA (8ª ed.)Catholic Church. Secretariatus ad Christianorum Unitatem Fovendam e 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.