Columbia subject headings:
Allegheny County (Pa.)--Politics and government.
County government--Pennsylvania--Allegheny County.
Municipal government--Pennsylvania--Allegheny County.
Municipal services--Pennsylvania--Allegheny County.
Harvard subject headings:
Allegheny County (Pa.)--Politics and government.
Municipal services--Pennsylvania--Allegheny County.
Princeton subject headings:
Allegheny County (Pa.)--Politics and government.
Municipal services--Pennsylvania--Allegheny County.