Barnes, Robert D.  1927-1993 <br/><br/>
Invertebrate zoology / 
Robert D. Barnes 
 - 3rd ed. :  original photographs by Betty M. Barnes ; new art work by Susan Heller 
 - Philadelphia :  W. B. Saunders,  1974 
 - 870 p. :  ill. ;  25 cm. 
<br/><br/>Bibliography : p. 838 
<br/><br/><label>ISBN: </label>0721615627 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates