Kotpal, R. L. <br/><br/>
Echinodermata 
R. L. Kotpal 
 - 5th ed. 
 - Meerut  Rastogi Publications  1988 
 - viii,219p.ill 
 - Zoology phylum .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> 15 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology
<br/><br/><label>Dewey Class. No.: </label>570  / K87