Hyman, Libbie Henrietta <br/><br/>
The Invertebrates / 
by Libbie Henrietta Hyman  
 - New York:  McGraw Hill Book Company,  1940 
 - p.726 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Zoology<br/>Mollusca
<br/><br/><label>Dewey Class. No.: </label>594  / HYM-T