EXXON CORP. v. WISCONSIN DEPT. OF REVENUE. The Oyez Project at IIT Chicago-Kent College of Law. 03 May 2013. <http://www.oyez.org/cases/1970-1979/1979/1979_79_509>.
EXXON CORP. v. WISCONSIN DEPT. OF REVENUE, The Oyez Project at IIT Chicago-Kent College of Law, http://www.oyez.org/cases/1970-1979/1979/1979_79_509 (last visited May 3, 2013).
"EXXON CORP. v. WISCONSIN DEPT. OF REVENUE," The Oyez Project at IIT Chicago-Kent College of Law, accessed May 3, 2013, http://www.oyez.org/cases/1970-1979/1979/1979_79_509.