McGowran, Brian <br/><br/>
Biostratigraphy: Microfossils and geological time (E-book) 
by Brian McGowran 
 -  CUP   
 - xx, 459p. 
<br/><br/> https://www.cambridge.org/core/books/biostratigraphy/6D98E1F0F5A86DC543D531FFC574AF5A 
<br/><br/><label>ISBN: </label>9780511610653 
<br/><br/><label>Dewey Class. No.: </label>560.17  / (e-book) (CEaS)