Alemayehu, M. (1992). The effect of traditional ditches on soil erosion and production: On-farm trials in Western Gojam, Dega Damot Awraja. Univ. of Berne [u.a.].
Chicago-Zitierstil (17. Ausg.)Alemayehu, Million. The Effect of Traditional Ditches on Soil Erosion and Production: On-farm Trials in Western Gojam, Dega Damot Awraja. Berne: Univ. of Berne [u.a.], 1992.
MLA-Zitierstil (9. Ausg.)Alemayehu, Million. The Effect of Traditional Ditches on Soil Erosion and Production: On-farm Trials in Western Gojam, Dega Damot Awraja. Univ. of Berne [u.a.], 1992.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.