Columbia subject headings:
Economic history.
Europe--Economic conditions.
Europe--Politics and government.
Europe--Social conditions.
Political science.
Social history.
Harvard subject headings:
Economic history.
Europe--Economic conditions.
Europe--Politics and government.
Europe--Social conditions.
Political science.
Social history.
Princeton subject headings:
Economic history.
Europe--Economic conditions.
Europe--Politics and government.
Europe--Social conditions.
Political science.
Social history.