CHICAGO & N. W. R. CO. v. TRANSPORTATION UNION. The Oyez Project at IIT Chicago-Kent College of Law. 12 February 2012. <http://www.oyez.org/cases/1970-1979/1970/1970_189>.
CHICAGO & N. W. R. CO. v. TRANSPORTATION UNION, The Oyez Project at IIT Chicago-Kent College of Law, http://www.oyez.org/cases/1970-1979/1970/1970_189 (last visited February 12, 2012).
"CHICAGO & N. W. R. CO. v. TRANSPORTATION UNION," The Oyez Project at IIT Chicago-Kent College of Law, accessed February 12, 2012, http://www.oyez.org/cases/1970-1979/1970/1970_189.