Outka, P. (2008). Race and nature from transcendentalism to the Harlem Renaissance. Palgrave Macmillan.
Lua i Stíl Chicago (17ú heag.)Outka, Paul. Race and Nature from Transcendentalism to the Harlem Renaissance. New York: Palgrave Macmillan, 2008.
Lua MLA (8ú heag.)Outka, Paul. Race and Nature from Transcendentalism to the Harlem Renaissance. Palgrave Macmillan, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.