Levy, David H. <br/><br/>
Comets  creators and destroyers 
David H. Levy                                               
 - New York  Touchstone Book  1998 
 - 256p. 
<br/><br/><label>ISBN: </label>0-684-85255-1 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Comets
<br/><br/><label>Universal Decimal Class. No.: </label>523.64  / LEV