Columbia subject headings:
City planning--New York (State)--New York--History--20th century.
Regional Plan of New York and Its Environs.
Regional planning--New York Metropolitan Area--History.
Harvard subject headings:
City planning--New York (State)--New York--History--20th century.
New York (N.Y.)--History--20th century.
Regional planning--New York Metropolitan Area--History--20th century.
Princeton subject headings:
Regional planning--New York metropolitan area.