Library of Congress. Manuscript Division & Biddle, N. (1915). The papers of Nicholas Biddle. Library of Congress.
Chicago-referens (17:e uppl.)Library of Congress. Manuscript Division och Nicholas Biddle. The Papers of Nicholas Biddle. Washington: Library of Congress, 1915.
MLA-referens (8:e uppl.)Library of Congress. Manuscript Division och Nicholas Biddle. The Papers of Nicholas Biddle. Library of Congress, 1915.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.