Columbia subject headings:
National Security Council (U.S.)--History.
National security--United States.
United States--Politics and government.
Harvard subject headings:
National Security Council (U.S.)--History.
National security--United States
United States--Politics and government--1961-1963.
United States--Politics and government--1963-1969.
Princeton subject headings:
National Security Council (U.S.)--History.
National security--United States.
United States--Politics and government--1961-1963.
United States--Politics and government--1963-1969.