Smith, Robert Leo. <br/><br/>
Ecology and field biology. 
Illustrated by Ned Smith. 
 - New York,  Harper & Row  [1966] 
<br/><br/>Includes bibliographies. 
<br/><br/><label>LCCN: </label>66015675 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology.
<br/><br/><label>LC Class. No.: </label>QH541  / .S6 
<br/><br/><label>Dewey Class. No.: </label>574.5