Columbia subject headings:
Africa, Southern--Foreign relations--United States.
Economic assistance, American--Africa, Southern.
United States--Foreign relations--Africa, Southern.
Harvard subject headings:
Africa, Southern--Foreign relations--United States.
Economic assistance, American--Africa, Southern.
United States--Foreign relations--Africa, Southern.
Princeton subject headings:
Africa, Southern--Foreign relations--United States.
Economic assistance, American--Africa, Southern.
United States--Foreign relations--Africa, Southern.