McKenna, S. (1946). Everyone's Madonna: The spread of devotion to Our Lady of Perpetual Help, 1866-1946. Mission Church Press.
Chicago-referens (17:e uppl.)McKenna, Stephen. Everyone's Madonna: The Spread of Devotion to Our Lady of Perpetual Help, 1866-1946. Boston: Mission Church Press, 1946.
MLA-referens (8:e uppl.)McKenna, Stephen. Everyone's Madonna: The Spread of Devotion to Our Lady of Perpetual Help, 1866-1946. Mission Church Press, 1946.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.