Columbia subject headings:
Harvard subject headings:
Czechoslovakia--Politics and government--1918-1938.
Germans--Czech Republic--Sudetenland--History
Germans--Czechoslovakia--History
Subversive activities--Czech Republic--Sudetenland.
Subversive activities--Czechoslovakia.
Sudetenland (Czech Republic)--Politics and government.
Princeton subject headings:
Czechoslovakia--Politics and government--1918-1938.
Germans--Czechoslovakia--History.
Subversive activities--Czechoslovakia.