@book{3636,
	author = {George, Alexander. and Velleman, Daniel J.},
	title = {Philosophies of mathematics /},
	publisher = {Blackwell Publishers,},
	year = {2002.},
	address = {Malden, Mass. :},
	url = {http://www.loc.gov/catdir/toc/fy037/2001037590.html}
}