Technological packages and approaches to management for rained agriculture in the semi-arid tropics. 

 - Washington, DC :  World Bank 
 - ca 300 p. ;  29 cm. 
<br/><br/> Open. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Tropics.--Collected works.<br/>Agriculture--Tropics.--Addresses, essays, lectures.<br/>Agriculture--Tropics.--Technological innovations.