Kotpal, R L. <br/><br/>
Porifera   

 - Meerut :   Rastogi Publications,   199596. 
<br/><br/><label>ISBN: </label>0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Life Sciences
<br/><br/><label>Dewey Class. No.: </label>590  / KOT