Brett C E Ed & bairdy G C Ed. <br/><br/>
Paleontological events stratigraphic, Ecological and Evolutionary Implications .-0-231-08250-9 

 -  Columbia Univ Press, New York, USA 
<br/><br/><label>ISBN: </label>0-231-08250-9 
<br/><br/><label>Dewey Class. No.: </label>H6/N97/B24442