Moore, C. Raymond <br/><br/>
Treatise on invertebrate paleontology. Vol.2 Pt.R 

 - New York  Geological Society of America  1966 
 - ii,R400-R651p.  26cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates, Fossil
<br/><br/><label>LC Class. No.: </label>QE770.J6 Vol.2 Pt.R