Hopkins, J. H., & Kenrick, F. P. (1843). A second letter to the Right Rev. Francis Patrick Kenrick, Roman Catholic Bishop of Philadelphia. (2nd ed.). Published by C. Goodrich. S. Fletcher, printer..
Chicago-referens (17:e uppl.)Hopkins, John Henry, och Francis Patrick Kenrick. A Second Letter to the Right Rev. Francis Patrick Kenrick, Roman Catholic Bishop of Philadelphia. 2nd ed. Burlington, Vt:: Published by C. Goodrich. S. Fletcher, printer., 1843.
MLA-referens (8:e uppl.)Hopkins, John Henry, och Francis Patrick Kenrick. A Second Letter to the Right Rev. Francis Patrick Kenrick, Roman Catholic Bishop of Philadelphia. 2nd ed. Published by C. Goodrich. S. Fletcher, printer., 1843.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.