Paul S. Boyer. "Courts." The Oxford Companion to United States History. Oxford University Press. 2001. Encyclopedia.com. 25 Dec. 2009 <http://www.encyclopedia.com>.
Paul S. Boyer. "Courts." The Oxford Companion to United States History. Oxford University Press. 2001. Encyclopedia.com. (December 25, 2009). http://www.encyclopedia.com/doc/1O119-Courts.html
Paul S. Boyer. "Courts." The Oxford Companion to United States History. Oxford University Press. 2001. Retrieved December 25, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O119-Courts.html