Ludi, E. (2004). Economic analysis of soil conservation: Case studies from the Highlands of Amhara Region, Ethiopia. Univ. of Berne.
Chicago-Zitierstil (17. Ausg.)Ludi, Eva. Economic Analysis of Soil Conservation: Case Studies from the Highlands of Amhara Region, Ethiopia. Berne: Univ. of Berne, 2004.
MLA-Zitierstil (9. Ausg.)Ludi, Eva. Economic Analysis of Soil Conservation: Case Studies from the Highlands of Amhara Region, Ethiopia. Univ. of Berne, 2004.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.