Tivy , J <br/><br/>
Agricultural ecology 
JOY TIVY 
 - New york  john wiley & sons  1990 
 - viii, 288pg.ill 
<br/><br/><label>ISBN: </label>0582301637 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural ecology
<br/><br/><label>LC Class. No.: </label>S 589.7 T58 1990