UNITED STATES v. GRINNELL CORP.. The Oyez Project at IIT Chicago-Kent College of Law. 26 April 2013. <http://www.oyez.org/cases/1960-1969/1965/1965_73>.
UNITED STATES v. GRINNELL CORP., The Oyez Project at IIT Chicago-Kent College of Law, http://www.oyez.org/cases/1960-1969/1965/1965_73 (last visited April 26, 2013).
"UNITED STATES v. GRINNELL CORP.," The Oyez Project at IIT Chicago-Kent College of Law, accessed April 26, 2013, http://www.oyez.org/cases/1960-1969/1965/1965_73.