Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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