Sagan, Carl,  1934- <br/><br/>
Billions and billions :  thoughts on life and death at the brink of the millennium / 
Carl Sagan. 
 - 1st ed. 
 - New York :  Random House,  c1997. 
 - xii, 241 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0679411607 
<br/><br/><label>LCCN: </label>96052730  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Miscellanea--Popular works.