@book{11340,
	author = {Chandrasekhar, S.},
	title = {Newton's Principia for the common reader /},
	publisher = {Clarendon Press ;},
	year = {1995},
	address = {Oxford :},
	url = {http://www.loc.gov/catdir/enhancements/fy0606/95001800-d.html}
}