Simpson, Brent M. <br/><br/>
The roots of change:    human behaviour and agricultural evolution in Mali /  
Brent M. Simpson 
 - London:    Intermediate technology publication ltd,    1999 
 - x, 172p.:    ill. 
<br/><br/>Inlcludes bibligraphical references 
<br/><br/><label>ISBN: </label>1853394688 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture, cooprative -- Mali
<br/><br/><label>LC Class. No.: </label>HD 1491 SIM 1999