Wallis, J. A. Nicholas <br/><br/>
Intensified systems of farming in the tropics and substropics / 
J. A. Nicholas Wallis 
 - Washington :  World Bank (WB) ,  1997 
 - 203p. :  ill. ;   32 cm.  
 - World Bank Discussion paper  No. 364 .
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0821339443 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture<br/>Natural resources<br/>Tropical crops<br/>Farming systems
<br/><br/><label>Gov. Doc. Class. No.: </label>UN WB DP-364