@book{118435,
	author = {Psillos, Stathis,},
	title = {The Routledge companion to philosophy of science /},
	publisher = {Routledge,},
	year = {2008.},
	series = {Routledge philosophy companions},
	address = {London ;},
	url = {http://www.loc.gov/catdir/toc/ecip0718/2007020000.html}
}