"ibuprofen." A Dictionary of Nursing. Oxford University Press. 2008. Encyclopedia.com. 9 Jul. 2009 <http://www.encyclopedia.com>.
"ibuprofen." A Dictionary of Nursing. Oxford University Press. 2008. Encyclopedia.com. (July 9, 2009). http://www.encyclopedia.com/doc/1O62-ibuprofen.html
"ibuprofen." A Dictionary of Nursing. Oxford University Press. 2008. Retrieved July 09, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O62-ibuprofen.html