Columbia subject headings:
Harvard subject headings:
Representative government and representation--Washington (D.C.)
United States. Congress. House--District of Columbia voting rights.
Washington (D.C.)--Politics and government--1967-
Washington (D.C.)--Politics and government--1967-1995
Princeton subject headings:
Representative government and representation--Washington (D.C.).
Washington (D.C.)--Politics and government--1967-.