Barnes, Robert D. <br/><br/>
Invertebrate zoology / 
[by] Robert D. Barnes. 
 - 2nd ed. 
 - Philadelphia :  Saunders,  1968. 
 - x, 743 p. :  ill. ;  27 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>LCCN: </label>68-011627 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates.
<br/><br/><label>Dewey Class. No.: </label>592