Loftus, Ernest Ackey. <br/><br/>
Gregory :  the Great Rift Valley. 

 - [Edinburgh] :  E[ast] : [A]frican L[iterature] B[ureau], Nelson,  E[ast] : [A]frican L[iterature] B[ureau], Nelson,  [1952] 
 - Early travellers in East Africa .
 - Early travellers in East Africa series. .
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Africa, East -- Description and travel--Africa, East -- Description and travel