D. H. OVERMYER CO. v. FRICK CO.. The Oyez Project at IIT Chicago-Kent College of Law. 13 February 2012. <http://www.oyez.org/cases/1970-1979/1971/1971_69_5>.
D. H. OVERMYER CO. v. FRICK CO., The Oyez Project at IIT Chicago-Kent College of Law, http://www.oyez.org/cases/1970-1979/1971/1971_69_5 (last visited February 13, 2012).
"D. H. OVERMYER CO. v. FRICK CO.," The Oyez Project at IIT Chicago-Kent College of Law, accessed February 13, 2012, http://www.oyez.org/cases/1970-1979/1971/1971_69_5.