British Institute in Eastern Africa:   communications about the possibilities of irrigation, agriculture in rift valley 

 - 2p.:  30cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Irrigation survey<br/>Oldonyo Sambu<br/>Iraq<br/>Tanzania
<br/><br/><label>LC Class. No.: </label>EAF FOS F78