Columbia subject headings:
Botswana--Description and travel.
Congo (Democratic Republic)--Description and travel.
South Africa--Description and travel.
Harvard subject headings:
Botswana--Description and travel.
Congo (Democratic Republic)--Description and travel
South Africa--Description and travel.
Princeton subject headings:
Botswana--Description and travel.
Congo (Democratic Republic)--Description and travel.
South Africa--Description and travel.