Woodbury, Angus M. <br/><br/>
Principles of general ecology 

 - New York :  Blakiston,  1954 
 - 503 p.  : ilus. 
<br/><br/><label>LCCN: </label>52590 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecología.
<br/><br/><label>Dewey Class. No.: </label>574.5  / W66