Barth, Robert H. <br/><br/>
The invertebrate world / 
Robert H. Barth, Robert E. Broshears. 
 - Philadelphia :  Saunders College Publishing,  1982. 
 - ix, 646 p. :  ill. ;  25 cm. 
<br/><br/>Includes bibliographical references and indexes. 
<br/><br/><label>ISBN: </label>0030132762 
<br/><br/><label>LCCN: </label>80-053916 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates.