Wrigley, Gordon. <br/><br/>
Tropical agriculture :  the development of production / 
Gordon Wrigley. 
 - 4th ed. 
 - London:  New York  Longman,  c1981. 
 - xv, 496p.  ill. ; 21 cm 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Tropics.
<br/><br/><label>Dewey Class. No.: </label>630.913  / W954