Hess Hans; Messing Charles G & Ausich William I <br/><br/>
Treatise on invertebrate paleontology / Part L, Mollusca 4: (Revised). Volume 4, Cretaceous ammonoidea .-978-0-9833599-1-3 

 -  Geological Society of America and The University of Kansas, USA, Kansas  2011 
<br/><br/><label>ISBN: </label>978-0-9833599-1-3 
<br/><br/><label>Dewey Class. No.: </label>H6:(K1)   P11.3/B28170