UNITED STATES v. LOUISIANA. The Oyez Project at IIT Chicago-Kent College of Law. 28 April 2013. <http://www.oyez.org/cases/1960-1969/1967/1967_9_orig>.
UNITED STATES v. LOUISIANA, The Oyez Project at IIT Chicago-Kent College of Law, http://www.oyez.org/cases/1960-1969/1967/1967_9_orig (last visited April 28, 2013).
"UNITED STATES v. LOUISIANA," The Oyez Project at IIT Chicago-Kent College of Law, accessed April 28, 2013, http://www.oyez.org/cases/1960-1969/1967/1967_9_orig.