APA-referens (7:e uppl.)

Vogüé, E. (1902). Pope Leo XIII: A character study. Catholic Truth Society.

Chicago-referens (17:e uppl.)

Vogüé, Eugène-Melchior. Pope Leo XIII: A Character Study. San Francisco: Catholic Truth Society, 1902.

MLA-referens (8:e uppl.)

Vogüé, Eugène-Melchior. Pope Leo XIII: A Character Study. Catholic Truth Society, 1902.