Columbia subject headings:
Hammarskjöld, Dag, 1905-1961.
United Nations.
World politics--1965-1975.
Harvard subject headings:
Hammarskjöld, Dag, 1905-1961
United Nations
World politics--1955-1965
Princeton subject headings:
Hammarskjöld, Dag, 1905-1961.
United Nations.
World politics--1965-