O'Neill, J. (1869). Letter, To: F.B. Gallagher Esq From: John O'Neill, October 14, 1869.
Chicago-referens (17:e uppl.)O'Neill, John. Letter, To: F.B. Gallagher Esq From: John O'Neill, October 14, 1869. 1869.
MLA-referens (8:e uppl.)O'Neill, John. Letter, To: F.B. Gallagher Esq From: John O'Neill, October 14, 1869. 1869.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.