Vogüé, E. (1902). Pope Leo XIII: A character study. Catholic Truth Society.
Dyfyniad Arddull ChicagoVogüé, Eugène-Melchior. Pope Leo XIII: A Character Study. San Francisco: Catholic Truth Society, 1902.
Dyfyniad MLAVogüé, Eugène-Melchior. Pope Leo XIII: A Character Study. Catholic Truth Society, 1902.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.