William R.Ochieng <br/><br/>
An outline history of the rift valley of kenya up to A.D 1900 / 
Ochieng W.R. 
 - Kampala :  East African literature bureau ;  1975. 
 - 131 pages. 
<br/><br/><label>LC Class. No.: </label>QE 77  / .O24 1975