Wallis, J.A. Nicholas <br/><br/>
Intensified systems of farming in the tropics and subtropics 
by J.A. Nicholas Wallis 
 - Washington, D.C.  World Bank  1997 
 - 203p. 
 - World Bank discussin paper no. 364 .
<br/><br/><label>ISBN: </label>0821339443 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Dry farming - Tropics<br/>Agricultural systems - Tropics
<br/><br/><label>Dewey Class. No.: </label>Z W158