Columbia subject headings:
Archaeology--Botswana.
Botswana--Antiquities.
Excavations (Archaeology)--Botswana.
Harvard subject headings:
Botswana--Antiquities.
Excavations (Archaeology)--Botswana.
Princeton subject headings:
Archaeology--Botswana.
Botswana--Antiquities.
Excavations (Archaeology)--Botswana.