Ecología y medio ambiente 
Teresa Valverde Valdés ... [et al.]. 
 - 1a ed. 
 - México  Pearson Educación  c2005. 
 - x, 230 p.  ill.  26 cm. 
<br/><br/><label>ISBN: </label>9702605369 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology--Study and teaching.<br/>Environmental Pollution
<br/><br/><label>LC Class. No.: </label>QH541.2  / .V35 2005