Elements of ecology 
Smith, Thomas (Thomas Michael),. 
 - 8th ed. 
 -  Pearson Education South Asia Pte. Ltd,  2012 
 - xx, 612, [70] p. 
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<br/><br/><label>ISBN: </label>978-0-321-73607-9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.
<br/><br/><label>Dewey Class. No.: </label>577 S6421 2012