Science and technology in African development. 

 - Paris :  UNESCO,  1974. 
 - 283 p. ;  il. 
 - (Science policy studies and documents; 35) .
<br/><br/><label>ISBN: </label>9231012088 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>338:6 (6) =20 SCI No.35.