DAMIEN KEOWN. "ācān." A Dictionary of Buddhism. 2004. Encyclopedia.com. 22 Nov. 2009 <http://www.encyclopedia.com>.
DAMIEN KEOWN. "ācān." A Dictionary of Buddhism. 2004. Encyclopedia.com. (November 22, 2009). http://www.encyclopedia.com/doc/1O108-cn.html
DAMIEN KEOWN. "ācān." A Dictionary of Buddhism. 2004. Retrieved November 22, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O108-cn.html