KOTPAL (R L). <br/><br/>
Zoology phylum-2: porifera. Ed.7. 

 - 
 - Meerut  Rastogi Publications  2001 
 - viii,128 
<br/><br/><label>ISBN: </label>81 7133 531 4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Porifera
<br/><br/><label>Dewey Class. No.: </label>591 KOTZ