COMMUNIST PARTY v. CATHERWOOD. The Oyez Project at IIT Chicago-Kent College of Law. 17 May 2012. <http://www.oyez.org/cases/1960-1969/1960/1960_495>.
COMMUNIST PARTY v. CATHERWOOD, The Oyez Project at IIT Chicago-Kent College of Law, http://www.oyez.org/cases/1960-1969/1960/1960_495 (last visited May 17, 2012).
"COMMUNIST PARTY v. CATHERWOOD," The Oyez Project at IIT Chicago-Kent College of Law, accessed May 17, 2012, http://www.oyez.org/cases/1960-1969/1960/1960_495.