Hirayama, Katsumi <br/><br/>
Miocene mollusca from the Arakawa Group, Tochigi Prefecture, Japan 

 - Tokyo  Geographical Institute and Geological and Mineralogical Institute, Tokyo University of Education  March 1954 
 - pp. 43-76  láms. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MIOCENO<br/>MOLLUSCA
<br/><br/><label>Subjects--Geographic Terms: </label><br/>JAPON