McGowran Brian <br/><br/>
Biostratigraphy : Microfossils and geological time .-978-0-521-04817 

 -  Cambridge Univ Press, Cambridge, Cambridge 
 - pp 459 
<br/><br/><label>ISBN: </label>978-0-521-04817 
<br/><br/><label>Dewey Class. No.: </label>H5-6     P08/MCGOWRAN BRIAN/B25997