Smith, Robert Leo. <br/><br/>
Elements of ecology. / 
Robert Leo Smith, Thomas M. Smith. 
 - 4th. ed. 
 - Singapore :  Pearson Education Asia Pte Ltd.,  c2002. 
 - xx , 567 p. :  ill. ;  26 cm. 
<br/><br/> Includes references, glossary, credits and index. Pb. 
<br/><br/><label>ISBN: </label>9814119318 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.
<br/><br/><label>LC Class. No.: </label>QH 541  / S624 2002