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

 - 5th /   1985-56. 
 - Meerut:  Rastogi Publications,  1985-86. 
 - 219 p. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Zoology, Echinodermata. 
<br/><br/><label>Dewey Class. No.: </label>593.9