Couper, Heather DK space encyclopedia / Heather Couper and Nigel Henbest - New York : A DK Publishing Book, c1999. - 304 p. : ill. ; 29 cm. ISBN: 0789447088 LCCN: Subjects--Topical Terms: AstronomyEncyclopediasJuvenile LC Class. No.: QB14 / .C68 1999