Columbia subject headings:
Czechoslovakia--Economic conditions--Maps.
Czechoslovakia--Maps.
Czechoslovakia--Social conditions--Maps.
Maps.
Harvard subject headings:
Czechoslovakia--Economic conditions--Maps.
Czechoslovakia--Maps.
Czechoslovakia--Social conditions--Maps.
Princeton subject headings:
Czechoslovakia--Economic conditions--Maps.
Czechoslovakia--Maps.
Czechoslovakia--Social conditions--Maps.
Maps.