KOTPAL, R L <br/><br/>
Coelenterata 

 - 7th Ed.  Reprint 
 -  Rastogi Publishers ,  1990 
 - 286p 
<br/><br/> Series No . 3. The ISBN Is 81-7133-068-1 
<br/><br/><label>ISBN: </label>81-7133-162-9 
<br/><br/><label>Dewey Class. No.: </label>593.5  / KOT/C