Barnes, Robert D <br/><br/>
Invertebrate zoology 
<label>/ by </label> Barnes, Robert D 
 - 2nd ed. 
 - Philadelphia  W. B. Saunders  1968 
 - x, 743p.  ill.  27 cm. 
<br/><br/><label>Dewey Class. No.: </label>592  / BAR