Breman, Henk. <br/><br/>
Opportunities and constraints for sustainable development in semi-ar id Africa /    
by Henk Breman. 
 - Maastricht, the Netherlands  :   United Nations University, Institu te for New Technologies,   c1995. 
 - iii, 23 p. :    ill. ;    25 cm. 
 - UNU/INTECH working paper ;   no. 18. .
<br/><br/>  "March 1995"--Cover. 
<br/><br/>Includes bibliography : p. 21-23. 
<br/><br/><label>ISBN: </label>9291410179 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural intensification ----Africa, Sub-Saharan.----<br/>Agricultural ecology ----Africa, Sub-Saharan.----<br/>Sustainable development ----Africa, Sub-Saharan.----