Keen, Myra <br/><br/>
Marine molluscan genera of western North America :  an illustrated key / 
A. Myra Keen. 
 - 126 páginas :  ilustraciones. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MOLUSCOS<br/>CLAVE DE IDENTIFICACION
<br/><br/><label>Dewey Class. No.: </label>FOLLETOS