JOHN CANNON. "South Yorkshire." A Dictionary of British History. 2004. Encyclopedia.com. 29 Nov. 2009 <http://www.encyclopedia.com>.
JOHN CANNON. "South Yorkshire." A Dictionary of British History. 2004. Encyclopedia.com. (November 29, 2009). http://www.encyclopedia.com/doc/1O43-SouthYorkshire.html
JOHN CANNON. "South Yorkshire." A Dictionary of British History. 2004. Retrieved November 29, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O43-SouthYorkshire.html