Lua APA (7ú heag.)
ebrary, Inc, & Tracy, S. C. (2004). A historical guide to Langston Hughes. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)
ebrary, Inc, agus Steven C. Tracy. A Historical Guide to Langston Hughes. New York: Oxford University Press, 2004.
Lua MLA (9ú heag.)
ebrary, Inc, agus Steven C. Tracy. A Historical Guide to Langston Hughes. Oxford University Press, 2004.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.