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

 - 7th /   1982-83. 
 - Meerut:  Rastogi Publications,  1982-83. 
 - 130 p. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Zoology, Porifera. 
<br/><br/><label>Dewey Class. No.: </label>593.4