Trotter. History of the American Negro. West Virginia University Press.
Lua i Stíl Chicago (17ú heag.)Trotter. History of the American Negro. West Virginia University Press.
Lua MLA (8ú heag.)Trotter. History of the American Negro. West Virginia University Press.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.