Ngugi, D. N. <br/><br/>
East African agriculture 
D. N. Ngugi 
 - 3rd 
 - London:  Macmillan,  1990. 
 - 330p.:  ill.;  24 cm. 
<br/><br/><label>ISBN: </label>978033488644 
<br/><br/><label>LC Class. No.: </label>DUCE S472.A3.N38  / N38