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

Social and ecological system dynamics = characteristics, trends, and integration in the Lake Tana Basin, Ethiopia / by: (Electronic resources)

Environmental protection- Planning.- Ethiopia

Tana, Lake (Ethiopia)- Environmental conditions.

Environmental policy- Social aspects- Ethiopia

Environment.

Blue Nile River (Ethiopia and Sudan)- Environmental conditions.

Human beings- Effect of environment on.

Environmental Economics.

Environmental management- Ethiopia

Environmental Geography.

Environmental Management.