APA (7th ed.) Citation

Catholic Church. Secretariatus ad Christianorum Unitatem Fovendam & Bea, A. (1967). Directory on ecumenism. Catholic Truth Society of Ireland.

Chicago Style (17th ed.) Citation

Catholic Church. Secretariatus ad Christianorum Unitatem Fovendam and Augustin Bea. Directory on Ecumenism. [Place of publication not identified]: Catholic Truth Society of Ireland, 1967.

MLA (8th ed.) Citation

Catholic Church. Secretariatus ad Christianorum Unitatem Fovendam and Augustin Bea. Directory on Ecumenism. Catholic Truth Society of Ireland, 1967.