"Agreement." -Ologies and -Isms. Gale. 1986. Encyclopedia.com. 21 Nov. 2009 <http://www.encyclopedia.com>.
"Agreement." -Ologies and -Isms. Gale. 1986. Encyclopedia.com. (November 21, 2009). http://www.encyclopedia.com/doc/1G2-2505200015.html
"Agreement." -Ologies and -Isms. Gale. 1986. Retrieved November 21, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1G2-2505200015.html