Steel, Duncan <br/><br/>
Rogue asteroids and doomsday comets  the search for the million megaton menace that threatens life on earth 
Duncan Steel                                                
 - New York  John Wiley & Sons  1995 
 - xii, 308p. 
<br/><br/><label>ISBN: </label>978-0-471-19338-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Asteroids<br/>Comets<br/>Extinction (Biology)<br/>Impact
<br/><br/><label>Universal Decimal Class. No.: </label>523.4  / STE