Columbia subject headings:
Housing policy--France--History.
Housing policy--Germany--History.
Public housing--France--History.
Public housing--Germany--History.
Harvard subject headings:
Housing policy--France--History.
Housing policy--Germany--History.
Public housing--France--History.
Public housing--Germany--History.
Princeton subject headings:
Housing policy--France--History.
Housing policy--Germany--History.
Public housing--France--History.
Public housing--Germany--History.