CENTRAL R. CO. v. PENNSYLVANIA. The Oyez Project at IIT Chicago-Kent College of Law. 13 February 2012. <http://www.oyez.org/cases/1960-1969/1961/1961_400>.
CENTRAL R. CO. v. PENNSYLVANIA, The Oyez Project at IIT Chicago-Kent College of Law, http://www.oyez.org/cases/1960-1969/1961/1961_400 (last visited February 13, 2012).
"CENTRAL R. CO. v. PENNSYLVANIA," The Oyez Project at IIT Chicago-Kent College of Law, accessed February 13, 2012, http://www.oyez.org/cases/1960-1969/1961/1961_400.