Columbia subject headings:
Harvard subject headings:
Poland--Description and travel--Sources.
Poland--Foreign public opinion, French--Sources.
Public opinion--France
Russia--Description and travel--Sources.
Russia--Foreign public opinion, French--Sources.
Soviet Union--Description and travel--Sources.
Soviet Union--Foreign public opinion, French--Sources.
Princeton subject headings:
Poland--Description and travel--Sources.
Poland--Foreign public opinion, French--Sources.
Public opinion--France.
Russia--Description and travel--Sources.
Russia--Foreign public opinion, French--Sources.