Columbia subject headings:
Europe--Politics and government.
Governmental investigations--Europe--History.
Harvard subject headings:
Communication in politics--Europe--History.
Europe--Politics and government.
Governmental investigations--Europe--History.
Interviewing--Political aspects--Europe--History.
Public opinion polls--Political aspects--Europe--History.
Research--Europe--Methodology--History.
Princeton subject headings:
Communication in politics--Europe--History.
Europe--Politics and government.
Governmental investigations--Europe--History.
Interviewing--Political aspects--Europe--History.
Public opinion polls--Political aspects--Europe--History.
Research--Europe--Methodology--History.