Contour furrows for in-situ soil and water conservation, Tigray, Northern Ethiopia
Tewodros Gebreegziabher
Contour furrows for in-situ soil and water conservation, Tigray, Northern Ethiopia - 2006 - p. 267-271
English
Contour furrows for in-situ soil and water conservation, Tigray, Northern Ethiopia - 2006 - p. 267-271
English