Columbia subject headings:
Civil rights--United States--History.
Constitutional history--United States.
United States--Politics and government--Philosophy.
United States--Politics and government.
Harvard subject headings:
Civil rights--United States--History
Constitutional history--United States
United States--Politics and government--Philosophy.
United States--Politics and government.
Princeton subject headings:
Civil rights--United States--History.
Constitutional history--United States.
United States--Politics and government--Philosophy.
United States--Politics and government.