"Sagan,Carl" <br/><br/>
Billions and billions 

 - New York  Random House  1998 
 - 296p. 
<br/><br/><label>ISBN: </label>9780345379184 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy
<br/><br/><label>Dewey Class. No.: </label>539.7 SAG