Kotpal, R. L. <br/><br/>
Mollusca :  a textbook for college & university students / 
R. L. Kotpal. 
 - Meerut, India :  Rastogi Publications,  1981. 
 - 240 p. :  ill. ;  18 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Shells.<br/>Mollusks