Smith, Robert Leo <br/><br/>
Ecology and field biology / 
Robert Leo Smith 
 - xiv, 686 p. :  il. ;  26 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>BIOLOGIA--TRABAJO DE CAMPO.
<br/><br/><label>Dewey Class. No.: </label>575.5  / S55 1966