Columbia subject headings:
Human ecology--Africa.
Landscape ecology--Africa.
Harvard subject headings:
Africa--Environmental conditions.
Africa--Social conditions.
Arid regions--Africa.
Human ecology--Africa
Human ecology--Namibia.
Landscape ecology--Africa.
Landscape ecology--Namibia.
Landscapes--Social aspects--Africa.
Princeton subject headings:
Human ecology--Africa.
Landscape ecology--Africa.
Landscapes--Africa.