Hegner, Robert William. <br/><br/>
Invertebrate zoology 

 - New York :  MacMillan,  1949 (c.1933) 
 - 570 p.  : ilus. 
<br/><br/><label>LCCN: </label>13019 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Invertebrados.
<br/><br/><label>Dewey Class. No.: </label>592  / H4