Heppenheimer, T.A. <br/><br/>
Countdown :  a history of space flight / 
T.A. Heppenheimer. 
 - New York :  John Wiley and Sons,  1997 
 - x, 398 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0471144398 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cold war-history.<br/>Astronautics and state.<br/>Space race-history.