Pingali,Prabhu <br/><br/>
Agricultural mechanization and the evolution of farming system  : in sub-saharan africa 
/ Prabh Pingali, yves Bigot, Hans P.Binswanger 
. - London  : The john hopkins University press, 1987
. - VIII-216 p.  : couv.ill.en coul.  ; 25 cm. 
<br/><br/><label>Source: </label> Fonds FACAGRO 
<br/><br/><label>Universal Decimal Class. No.: </label>631.3.