“American Revolution.”  History is Fun. 1998.  http://www.history is

      fun.org./jyf1/education.html.

“Benjamin Franklin.” North American Colonial Times.  New York:

     Random House, 1998.

Britannica Encyclopedia. 2000. http://www.britannica.com/sed/d/

     dentistry-1/.

Grolier Encyclopedia.  “Ben Franklin-18554” http://www.greexceny

     arm/welch/join5.jpg.

“Teacher Plan for Political Cartoons”  http;//cagle.slate.msn.com/

     teacher.