Tivy, Joy. <br/><br/>
Agricultural ecology / 
Joy Tivy. 
 - Harlow :  Longman,  1992. 
 - viii, 288 p ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0582301637 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural ecology.