UNITED STATES v. UNITED STATES GYPSUM CO.. The Oyez Project at IIT Chicago-Kent College of Law. 13 February 2012. <http://www.oyez.org/cases/1970-1979/1977/1977_76_1560>.
UNITED STATES v. UNITED STATES GYPSUM CO., The Oyez Project at IIT Chicago-Kent College of Law, http://www.oyez.org/cases/1970-1979/1977/1977_76_1560 (last visited February 13, 2012).
"UNITED STATES v. UNITED STATES GYPSUM CO.," The Oyez Project at IIT Chicago-Kent College of Law, accessed February 13, 2012, http://www.oyez.org/cases/1970-1979/1977/1977_76_1560.