JOHN CANNON. "Alexander III." The Oxford Companion to British History. Oxford University Press. 2002. Encyclopedia.com. 8 Dec. 2009 <http://www.encyclopedia.com>.
JOHN CANNON. "Alexander III." The Oxford Companion to British History. Oxford University Press. 2002. Encyclopedia.com. (December 8, 2009). http://www.encyclopedia.com/doc/1O110-AlexanderIII.html
JOHN CANNON. "Alexander III." The Oxford Companion to British History. Oxford University Press. 2002. Retrieved December 08, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O110-AlexanderIII.html