@book{131074,
	author = {Dretske, Fred I.},
	title = {Knowledge and the flow of information /},
	publisher = {Basil Blackwell,},
	year = {1999.},
	address = {Oxford :},
	note = {Originally published: Cambridge, Mass. : MIT Press, c1981.},
	url = {http://www.loc.gov/catdir/toc/cam024/99012546.html}
}