@book{510408,
	author = {Ridpath, Ian.},
	title = {The Illustrated encyclopedia of astronomy and space /},
	publisher = {Crowell,},
	year = {c1979.},
	address = {New York :},
	edition = {Rev. ed.},
	note = {Includes index.},
	url = {http://www.archive.org/details/illustratedencyc00ridp}
}