x  x <br/><br/>
Simon and schuster's guide shells  x 

 - x 
 - New York  Simon & Schuster  1980 
 - 512 
<br/><br/>Includes 
<br/><br/><label>ISBN: </label>0671253204 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Shells-Identification Mollusks 
<br/><br/><label>Dewey Class. No.: </label>594.1477/S544