Smith, Robert Leo. <br/><br/>
Elements of ecology / 
Robert Leo Smith. 
 - 2nd ed. 
 - New York :  Harper & Row,  c1986. 
 - xxv, 677 p. :  ill. 
<br/><br/> Rev. ed. of: Elements of ecology and field biology / Robert Leo Smith. c1977. 
<br/><br/><label>ISBN: </label>0060463279 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.<br/>Biology--Field work.
<br/><br/><label>LC Class. No.: </label>QH541  / .S624 1986 
<br/><br/><label>Dewey Class. No.: </label>574.5�19