Gaya APA

Directory for the application of principles and norms on ecumenism. Pontificium Consilium ad Christianorum Unitatem Fovendam . (1993). Vatican City: Vatican City Pontificium Consilium.

Gaya MLA

Directory for the application of principles and norms on ecumenism. Pontificium Consilium ad Christianorum Unitatem Fovendam . . Vatican City: Vatican City Pontificium Consilium, 1993. Buku.