Seidman, H. (1938). Labor czars: A history of labor racketeering / by Harold Seidman. Liveright.
Lua i Stíl Chicago (17ú heag.)Seidman, Harold. Labor Czars: A History of Labor Racketeering / by Harold Seidman. New York: Liveright, 1938.
Lua MLA (8ú heag.)Seidman, Harold. Labor Czars: A History of Labor Racketeering / by Harold Seidman. Liveright, 1938.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.