Extinction events in earth history / 
edited by Erle G. Kauffman (and) Otto H. Walliser, editors 
 - Berlin :  Springer-Verlag,  1990 
 - 432 p. :  ill. ;  24 cm. 
 - Lecture notes in earth sciences  v. 30 .
<br/><br/><label>ISBN: </label>3540526056 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Earth