Davidson, Keay,  <br/><br/>
Carl Sagan :   a life 

 - xx, 540 pages :   illustrations ;   23 cm 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0471395366 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sagan, Carl, 1934-1996 ; Astronomers - United States - Biography
<br/><br/><label>Dewey Class. No.: </label>520.92