MICHAEL ALLABY. "episepalous." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. 12 Nov. 2009 <http://www.encyclopedia.com>.
MICHAEL ALLABY. "episepalous." A Dictionary of Plant Sciences. 1998. Encyclopedia.com. (November 12, 2009). http://www.encyclopedia.com/doc/1O7-episepalous.html
MICHAEL ALLABY. "episepalous." A Dictionary of Plant Sciences. 1998. Retrieved November 12, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O7-episepalous.html