Spangenburg, Ray <br/><br/>
Carl Sagan : a biography 
Ray Spangenburg and Kit Moser 
 - 1st ed 
 - Amherst, NY  Prometheus Books  2009 
 - 181 p. : ill. ; 23 cm 
<br/><br/> Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>9781591026587 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomers -- United States -- Biography -- Juvenile literature<br/>Sagan, Carl, -- 1934-1996 -- Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>520.92 SPA