Tivy, Joy <br/><br/>
Agricultural ecology / 
Joy Tivy 
 - 288 p. :  il. ;  23 cm. 
<br/><br/><label>ISBN: </label>0582301637 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECOLOGIA AGRICOLA.
<br/><br/><label>Dewey Class. No.: </label>630.2745  / T5 1990