Environmental policy - Social aspects - Ethiopia - Tana, Lake.

Social and ecological system dynamics = characteristics, trends, and integration in the Lake Tana Basin, Ethiopia / by: (書目-語言資料,印刷品)

Blue Nile River (Ethiopia and Sudan)

Environment.

Environmental Economics.

Environmental Geography.

Environmental management

Environmental Management.

Environmental policy

Environmental protection

Human beings

Tana, Lake (Ethiopia)