Engemann, Joseph G. <br/><br/>
Invertebrate zoology 
Joseph G. Engemann, Robert W. Hegner 
 - 3rd ed. 
 - New York  Macmillan  1981 
 - 746 p. : ill. ; 26 cm. 
<br/><br/> In the 2nd ed. Hegner's name appeared first on t.p. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>002333780X 
<br/><br/><label>LCCN: </label>80-12063 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrates