Moses, W. J. (1989). Alexander Crummell: A study of civilization and discontent. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Moses, Wilson Jeremiah. Alexander Crummell: A Study of Civilization and Discontent. New York: Oxford University Press, 1989.
Lua MLA (9ú heag.)Moses, Wilson Jeremiah. Alexander Crummell: A Study of Civilization and Discontent. Oxford University Press, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.