Michigan Anti-slavery Society. Executive Committee. (1841). Signal of liberty. N. Sullivan.
Chicago-referens (17:e uppl.)Michigan Anti-slavery Society. Executive Committee. Signal of Liberty. Ann Arbor, Mich.: N. Sullivan, 1841.
MLA-referens (8:e uppl.)Michigan Anti-slavery Society. Executive Committee. Signal of Liberty. N. Sullivan, 1841.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.