Michigan Anti-slavery Society. Executive Committee. (1841). Signal of liberty. N. Sullivan.
Lua i Stíl Chicago (17ú heag.)Michigan Anti-slavery Society. Executive Committee. Signal of Liberty. Ann Arbor, Mich.: N. Sullivan, 1841.
Lua MLA (8ú heag.)Michigan Anti-slavery Society. Executive Committee. Signal of Liberty. N. Sullivan, 1841.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.