Hyman, Henrietta Libbie. <br/><br/>
The invertebrates vol.vi,Mollusca I :  aplacophora, polyplacophora , monoplacophora, gastropoda the coelomate bilateria / 
Libbie Henrie tta Hyman. 
 - New York :  McGraw-Hill Book Company ,  1967 
 - vii,:  ill.;  18 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates.
<br/><br/><label>Dewey Class. No.: </label>592