Columbia subject headings:
King, Martin Luther, Jr., 1929-1968--Anniversaries, etc.
National service--Law and legislation--United States.
United States. Martin Luther King, Jr., Federal Holiday Commission.
Harvard subject headings:
King, Martin Luther, Jr., 1929-1968--Anniversaries, etc.
National service--Law and legislation--United States.
United States. Martin Luther King, Jr., Federal Holiday Commission.
Princeton subject headings: