Wrigley, Gordon. <br/><br/>
Tropical agriculture :  the development of production / 
Gordon Wrighley. 
 - 4th ed. 
 - London :  Longman,  1981. 
 - xv, 496 p. :  ill. ;  22 cm. 
<br/><br/>Includes index and references. 
<br/><br/> Open access. 
<br/><br/><label>ISBN: </label>0582460379 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Tropics.