McNaughton, S.J. <br/><br/>
Ecología general 

 - Barcelona :   Omega,  c1984  
<br/><br/><label>ISBN: </label>8428207305 
<br/><br/><label>Standard No.: </label>DVE-M3437 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECOLOGIA
<br/><br/><label>Universal Decimal Class. No.: </label>574