Barnes, Robert D. (Robert Drane), 1927-1993 <br/><br/>
Invertebrate zoology 
Robert D. Barnes 
 - 2nd ed. 
 - Philadelphia  W. B. Saunders  1968 
 - 743 p. : ill. ; 27 cm. 
<br/><br/><label>LCCN: </label>68-11627 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates