Columbia subject headings:
Congo (Democratic Republic)--History--Civil War, 1960-1965.
Lumumba, Patrice, 1925-1961.
United Nations--Congo (Democratic Republic)
Harvard subject headings:
Congo (Democratic Republic)--Foreign relations--United States.
Hammarskjöld, Dag, 1905-1961
Lumumba, Patrice, 1925-1961--Assassination.
United Nations
United States--Foreign relations--Congo (Democratic Republic)
Princeton subject headings: