Elton, Charles. <br/><br/>
Animal ecology 

 - London :  Sidgwick and Jackson,  1951 (c.1927) 
 - 209 p.  : ilus. 
<br/><br/><label>LCCN: </label>33264 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecología animal.
<br/><br/><label>Dewey Class. No.: </label>591.5  / E58