@book{199513,
	author = {Cahn, Steven M.},
	title = {Exploring philosophy :},
	publisher = {Oxford University Press,},
	year = {c2009.},
	address = {Oxford ;},
	edition = {3rd ed.},
	url = {http://www.loc.gov/catdir/toc/ecip0825/2008034320.html}
}