Columbia subject headings:
Africa--Civilization--American influences.
Africa--Foreign relations--United States.
African Americans--History.
United States--Civilization--African influences.
United States--Foreign relations--Africa.
Harvard subject headings:
Africa--Civilization--American influences
Africa--Foreign relations--United States
African Americans--History
United States--Civilization--African influences
United States--Foreign relations--Africa
Princeton subject headings:
Africa--Civilization--American influences.
Africa--Foreign relations--United States.
African Americans--History.
United States--Civilization--African influences.
United States--Foreign relations--Africa.