UNITED STATES v. HOPKINS. The Oyez Project at IIT Chicago-Kent College of Law. 27 April 2013. <http://www.oyez.org/cases/1970-1979/1975/1975_75_246#opinion>.
UNITED STATES v. HOPKINS, The Oyez Project at IIT Chicago-Kent College of Law, http://www.oyez.org/cases/1970-1979/1975/1975_75_246#opinion (last visited April 27, 2013).
"UNITED STATES v. HOPKINS," The Oyez Project at IIT Chicago-Kent College of Law, accessed April 27, 2013, http://www.oyez.org/cases/1970-1979/1975/1975_75_246#opinion.