SPENCE v. WASHINGTON. The Oyez Project at IIT Chicago-Kent College of Law. 13 February 2012. <http://www.oyez.org/cases/1970-1979/1973/1973_72_1690>.
SPENCE v. WASHINGTON, The Oyez Project at IIT Chicago-Kent College of Law, http://www.oyez.org/cases/1970-1979/1973/1973_72_1690 (last visited February 13, 2012).
"SPENCE v. WASHINGTON," The Oyez Project at IIT Chicago-Kent College of Law, accessed February 13, 2012, http://www.oyez.org/cases/1970-1979/1973/1973_72_1690.