Catholic Church. Commissio Centralis Praeparatoria Concilii Vaticani II & Bea, A. (1962). Quaestiones secretariatus ad Christianorum Unitatem fovendam: Schema constitutionis De libertate religiosa. Typis Polyglottis Vaticanis.
Chicago Style (17th ed.) CitationCatholic Church. Commissio Centralis Praeparatoria Concilii Vaticani II and Augustin Bea. Quaestiones Secretariatus Ad Christianorum Unitatem Fovendam: Schema Constitutionis De Libertate Religiosa. [Romae]: Typis Polyglottis Vaticanis, 1962.
MLA (8th ed.) CitationCatholic Church. Commissio Centralis Praeparatoria Concilii Vaticani II and Augustin Bea. Quaestiones Secretariatus Ad Christianorum Unitatem Fovendam: Schema Constitutionis De Libertate Religiosa. Typis Polyglottis Vaticanis, 1962.
Warning: These citations may not always be 100% accurate.