Smith, T. M.  1955- <br/><br/>
Elements of ecology / 
Thomas M. Smith, Robert Leo Smith 
 - 6th ed. 
 - San Francisco :  Pearson Benjamin Cummings,  2006 
 - xxiv, 658 p. :  ill. ;  28 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0321410297  RM72.00 0805348301 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology