Bishops, C. C. i. B. (1916). Letter of the Bishops of Belgium to the Bishops of Germany Bavaria and Austria-Hungary. New York.
Dyfyniad Arddull ChicagoBishops, Catholic Church in Belgium. Letter of the Bishops of Belgium to the Bishops of Germany Bavaria and Austria-Hungary. New York, 1916.
Dyfyniad MLABishops, Catholic Church in Belgium. Letter of the Bishops of Belgium to the Bishops of Germany Bavaria and Austria-Hungary. New York, 1916.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.