Columbia subject headings:
Apartheid--South Africa.
Sanctions (International law)
Tambo, Oliver, 1917-1993.
Harvard subject headings:
Apartheid--South Africa
Economic sanctions--South Africa.
South Africa--Foreign relations--1961-1978.
South Africa--Foreign relations--1978-1989.
United Nations--South Africa.
Princeton subject headings:
Apartheid--South Africa.
Sanctions (International law)
Tambo, Oliver, 1917-1993.