Zimmerman, Robert, 1953- Leaving earth : space stations, rival superpowers, and the quest for interplanetary travel / by Robert Zimmerman. - Washington, D.C. : J. Henry Press, c2003. - xiii, 528 p. : ill. ; 24 cm. Includes bibliographical references (p. 467-481) and index. ISBN: 0309085489 (Hardcover) LCCN: 2003007637 Subjects--Topical Terms: Astronautics--History.Astronautics--Political aspects--History. Subjects--Geographic Terms: Outer space--Exploration--History. LC Class. No.: TL788.5 / .Z55 2003