Kotpal, R. L. <br/><br/>
Porifera :  a text book for college and university student / 
by R.L. kotpal 
 - Meerut :  Rastogi,  1983 
 - viii, 130 p. ;  18 cm. 
 - Zoology phylum ;  2 .
<br/><br/>Bibliography : p. 129-130 
<br/><br/><label>ISBN: </label> Rs. 5.35 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Polyzoa<br/>Zoology
<br/><br/><label>Dewey Class. No.: </label>593.4