Columbia subject headings:
Executive power--United States.
Kennedy, John F. (John Fitzgerald), 1917-1963.
United States--Politics and government--1961-1963.
Harvard subject headings:
Executive power--United States
Kennedy, John F. (John Fitzgerald), 1917-1963
United States--Politics and government--1961-1963.
Princeton subject headings:
Executive power--United States.
Kennedy, John F. (John Fitzgerald), 1917-1963.
United States--Politics and government--1961-1963.