PINGALI,PRABHU <br/><br/>
AGRICULTURAL MECHANIZATION AND THE EVOLUTION OF FARMING SYSTEMS IN SUB-SAHARAN AFRICA 

 - BALTIMORE  THE JOHNS HOPKINS UNIVERSITY PRESS  1987 
 - 216P. 
<br/><br/><label>ISBN: </label>0-80183502X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>FARM MECHANIZATION---AFRICA,SUB SAHARAN
<br/><br/><label>LC Class. No.: </label>S 760.  / A357P56 1987