Pius XII, P. J. B. H. G. C. T. (1944). Pius XII and Democracy, Christmas Message of ... December 24, 1944. New York.
Dyfyniad Arddull ChicagoPius XII, Pope; John B Harney; Gerald C Treacy. Pius XII and Democracy, Christmas Message of ... December 24, 1944. New York, 1944.
Dyfyniad MLAPius XII, Pope; John B Harney; Gerald C Treacy. Pius XII and Democracy, Christmas Message of ... December 24, 1944. New York, 1944.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.