Smith, J. D. (2013). Lincoln and the U.S. Colored Troops. Southern Illinois University Press.
Lua i Stíl Chicago (17ú heag.)Smith, John David. Lincoln and the U.S. Colored Troops. Carbondale: Southern Illinois University Press, 2013.
Lua MLA (9ú heag.)Smith, John David. Lincoln and the U.S. Colored Troops. Southern Illinois University Press, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.