KOTPAL , R.L . <br/><br/>
PORIFERA  

 - 7TH. 
 - MEERUT  RASTOGI PUBLICATION  2004 
 - 128.:  20CM. 
<br/><br/><label>Subjects--Index Terms: </label>Animals (Zoology) 
<br/><br/><label>Dewey Class. No.: </label>590 KOT