Columbia subject headings:
France--Politics and government--1945-1958.
Parti socialiste-S.F.I.O.
Harvard subject headings:
France--Politics and government--1945-1958.
Parti socialiste (France)--S.F.I.O.
Princeton subject headings:
France--Politics and government--1945-1958.
Parti socialiste (France)--S.F.I.O.