UNITED GAS CO. v. IDEAL CEMENT CO.. The Oyez Project at IIT Chicago-Kent College of Law. 12 February 2012. <http://www.oyez.org/cases/1960-1969/1961/1961_61>.
UNITED GAS CO. v. IDEAL CEMENT CO., The Oyez Project at IIT Chicago-Kent College of Law, http://www.oyez.org/cases/1960-1969/1961/1961_61 (last visited February 12, 2012).
"UNITED GAS CO. v. IDEAL CEMENT CO.," The Oyez Project at IIT Chicago-Kent College of Law, accessed February 12, 2012, http://www.oyez.org/cases/1960-1969/1961/1961_61.