Library of Congress. Manuscript Division & Biddle, N. (1915). The papers of Nicholas Biddle. Library of Congress.
Lua i Stíl Chicago (17ú heag.)Library of Congress. Manuscript Division agus Nicholas Biddle. The Papers of Nicholas Biddle. Washington: Library of Congress, 1915.
Lua MLA (8ú heag.)Library of Congress. Manuscript Division agus Nicholas Biddle. The Papers of Nicholas Biddle. Library of Congress, 1915.
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