@book{71670,
	author = {Hawking, Stephen,},
	title = {The universe in a nutshell /},
	publisher = {Bantam Books,},
	year = {2001.},
	address = {New York :},
	note = {Includes index.},
	url = {http://www.loc.gov/catdir/bios/random053/2001035757.html}
}