Kennedy W J & Cobban W A <br/><br/>
Aspects of Ammonite Biology Biogeography & Biostratigraphy  No 17 

 -  Palaeontological Asso, London 
 - pp 94;   25*19 
<br/><br/><label>Dewey Class. No.: </label>H6:(K7753)/N76/B16165