@book{36490,
	author = {Beauchamp, Tom L. and Childress, James F.},
	title = {Principles of biomedical ethics /},
	publisher = {Oxford University Press,},
	year = {2009.},
	address = {New York :},
	edition = {6th ed.},
	url = {http://www.loc.gov/catdir/toc/ecip088/2008000233.html}
}