Fraenkel, Peter L. Food from windmills : a report on the wind mill irrigation project initiated by the American Presbyterian mission at Omo Station in Ethiopia / by Peter L. Fraenkel - London : Intermediate Technology Publications, 1975 - 56 p. : ill. ; 26 cm. Subjects--Topical Terms: Irrigation engineeringWindmills Subjects--Geographic Terms: Underdeveloped areas--Technology