Curtillot, Vincent <br/><br/>
Evolutionary catastrophes  The science of mass extinction 
by Vincent Courtillot 
 - Cambridge  Cambridge University Press  1999 
 - xiii,173p. 
<br/><br/><label>ISBN: </label>0521583926 
<br/><br/><label>Dewey Class. No.: </label>575.7  / N99