Columbia subject headings:
Bohemia (Czech Republic)--History.
Europe--History.
Havránek, Jan.
Harvard subject headings:
Czech Republic--History.
Czech Republic--Social conditions
Education--Czech Republic--History.
Education--Europe--History
Europe--History.
Europe--Social conditions.
Havránek, Jan.
Princeton subject headings:
Czechoslovakia--Economic conditions.
Czechoslovakia--History.
Czechoslovakia--Population--History.
Education--Czechoslovakia--History.
Havránek, Jan, 1928-