Tivy, Joy. <br/><br/>
Agricultural ecology / 
Joy Tivy. 
 - Harlow :  Longman Scientific & Technical,  1990. 
 - viii, 288 p. :  ill. 
<br/><br/>
<br/><br/><label>ISBN: </label>0582301637 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural ecology.