Smith , Robert Leo. <br/><br/>
Elements of ecology / 
Robert Leo Smith, Thomas M. Smith. 
 - 5th edition. 
 - Singapore :  Pearson ,  c2004. 
 - xvi, 665 p. :  black and white illustrations ;  26 cm. 
<br/><br/> Includes references, glossary, and index. 
<br/><br/><label>ISBN: </label>080534473 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.<br/>Ecology--Textbooks.<br/> Ecology-- Study and teaching (Higher).
<br/><br/><label>Dewey Class. No.: </label>CIR 577.21 Sm658 2004