Columbia subject headings:
City planning--Pennsylvania--Philadelphia--History--20th century.
Public housing--Pennsylvania--Philadelphia--History--20th century.
Urban renewal--Pennsylvania--Philadelphia--History--20th century.
Harvard subject headings:
City planning--Pennsylvania--Philadelphia
City planning--Pennsylvania--Philadelphia--History--20th century.
Public housing--Pennsylvania--Philadelphia--History--20th century.
Urban renewal--Pennsylvania--Philadelphia--History--20th century.
Princeton subject headings:
City planning--Pennsylvania--Philadelphia--History--20th century.
Public housing--Pennsylvania--Philadelphia--History--20th century.
Urban renewal--Pennsylvania--Philadelphia--History--20th century.