Smith, Tomas M. <br/><br/>
Ecología  Tomas M. Smith 
Robert Leo Smith 
 - 6a ed 
 - Madrid  Pearson, Addison Wesley  2007. 
 - 682 p.  il.  27 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9788478290840 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology