Eastman, M. (1925). Leon Trotsky: The portrait of a youth. Greenberg, inc.
Lua i Stíl Chicago (17ú heag.)Eastman, Max. Leon Trotsky: The Portrait of a Youth. New York: Greenberg, inc, 1925.
Lua MLA (9ú heag.)Eastman, Max. Leon Trotsky: The Portrait of a Youth. Greenberg, inc, 1925.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.