Brewer, Richard. <br/><br/>
Principles of ecology 

 - Philadelphia, Pa. :  Saunders,  1979 
 - 299 p.  : ilus. ; gráfs. 
<br/><br/><label>LCCN: </label>24104 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecología.
<br/><br/><label>Dewey Class. No.: </label>574.5  / B7