Sagan, Carl, <br/><br/>
Contact / 
Carl Sagan. 
 - New York :  Pocket Books,  c1985. 
 - 434 p. ; 
<br/><br/><label>ISBN: </label>9780671004101 
<br/><br/><label>Dewey Class. No.: </label>509.05  / SAG/C