F. T. C. v. NATIONAL LEAD CO.. The Oyez Project at IIT Chicago-Kent College of Law. 12 February 2012. <http://www.oyez.org/cases/1950-1959/1956/1956_63>.
F. T. C. v. NATIONAL LEAD CO., The Oyez Project at IIT Chicago-Kent College of Law, http://www.oyez.org/cases/1950-1959/1956/1956_63 (last visited February 12, 2012).
"F. T. C. v. NATIONAL LEAD CO.," The Oyez Project at IIT Chicago-Kent College of Law, accessed February 12, 2012, http://www.oyez.org/cases/1950-1959/1956/1956_63.