Kotpal, R. L. <br/><br/>
Porifera 
R. L. Kotpal 
 - 7th ed. 
 - Meerut  Rastogi Publications  1987 
 - viii,130p.ill 
 - Zoology phylum .
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label> 8.50 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology
<br/><br/><label>Dewey Class. No.: </label>591  / K87