Kotpal, R. L. <br/><br/>
Echinodermata :  a text book for college and university students / 
by R. L. Kotpal 
 - 5th ed. 
 - Meerut :  Rastogi,  1982 
 - viii, 219 p. ;  18 cm. 
 - Zoology phylum ;  8 .
<br/><br/>Bibliography : p. 213-214 
<br/><br/><label>ISBN: </label> Rs. 9.75 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology
<br/><br/><label>Dewey Class. No.: </label>593.9