Moore, Raymond C, et al. <br/><br/>
Invertebrate fossils 

 -  CBS Publishers & Distributors, New Delhi  1997 
 - 766 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates; Zoology
<br/><br/><label>Dewey Class. No.: </label>592  MOO-I