Columbia subject headings:
Black people--Namibia--Economic conditions--Congresses.
Black people--Namibia--Social conditions--Congresses.
Black people--South Africa--Economic conditions--Congresses.
Black people--South Africa--Social conditions--Congresses.
Prisons--Namibia--Congresses.
Prisons--South Africa--Congresses.
Robben Island (South Africa)--Congresses.
Harvard subject headings:
Black people--Namibia--Economic conditions--Congresses.
Black people--Namibia--Social conditions--Congresses.
Black people--South Africa--Economic conditions--Congresses.
Black people--South Africa--Social conditions--Congresses.
Jails--Namibia--Congresses.
Jails--South Africa--Congresses.
Prisons--Namibia--Congresses.
Prisons--South Africa--Congresses.
Robben Island (South Africa)--Congresses.
Princeton subject headings: