Gerald Bordman and Thomas S. Hischak. "Clurman, Harold (Edgar)." The Oxford Companion to American Theatre. Oxford University Press. 2004. Encyclopedia.com. 26 Nov. 2009 <http://www.encyclopedia.com>.
Gerald Bordman and Thomas S. Hischak. "Clurman, Harold (Edgar)." The Oxford Companion to American Theatre. Oxford University Press. 2004. Encyclopedia.com. (November 26, 2009). http://www.encyclopedia.com/doc/1O149-ClurmanHaroldEdgar.html
Gerald Bordman and Thomas S. Hischak. "Clurman, Harold (Edgar)." The Oxford Companion to American Theatre. Oxford University Press. 2004. Retrieved November 26, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O149-ClurmanHaroldEdgar.html