Engemann, Joseph G., <br/><br/>
Invertebrate zoology 
/ Joseph G. Engemann, Robert W. Hegner. 
 - 3d ed. 
 - New York  ; London  : Macmillan  : Collier Macmillan Publishers  , c1981. 
 - xxi, 746 p.  : ill.  ; 26 cm. 
<br/><br/> In the 2d ed. Hegner's name appeared first on t.p. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>002333780X 
<br/><br/><label>LCCN: </label>80012063 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates.