Steel, Duncan <br/><br/>
Rogue asteroids and doomsday comets  the search for the million megaton menace that threatens life on earth 

 - New York  John Wiley  1995 
 - xii,308 p. 
<br/><br/><label>ISBN: </label>0471193380 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Asteroids<br/>Extinction<br/>Impacts
<br/><br/><label>Dewey Class. No.: </label>363.34  / STE