Smith, Robert Leo. <br/><br/>
Elements of ecology / 
Robert Leo Smith, Thomas M. Smith. 
 - 4th ed. 
 - Menlo Park, Calif. :  Benjamin Cummings,  1998. 
 - xix, 555 p. :  ill. ;  26 cm. 
<br/><br/>Includes bibliographical references [p. 507-521] and index. 
<br/><br/><label>ISBN: </label>0321015185  RM119.98 
<br/><br/><label>LCCN: </label>97-043763 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.