@book{4009,
	author = {Wallace, Karen.},
	title = {Rockets and spaceships },
	publisher = {Dorling Kindersley Pub.,},
	year = {2001.},
	address = {New York :},
	edition = {1st American ed.},
	url = {http://www.loc.gov/catdir/enhancements/fy0721/00056974-d.html}
}