Ley, Willy,  1906-1969. <br/><br/>
Watchers of the skies :  an informal history of astronomy from Babylon to the space age / 
Willy Ley 
 - New York :  Viking Press ,  c1963 
 - xiii, 528 p. :  illus., ports. ;  24 cm. 
<br/><br/>Bibliography: p. 518-520. Bibliographical footnotes and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy--History.
<br/><br/><label>Dewey Class. No.: </label>523.09  / LEW 1963