Columbia subject headings:
Internment camps--Czechoslovakia.
World War, 1939-1945--Conscript labor--Czechoslovakia.
Harvard subject headings:
Concentration camps--Czechoslovakia.
World War, 1939-1945--Conscript labor--Czechoslovakia.
Princeton subject headings:
Nazi concentration camps--Czechoslovakia.
World War, 1939-1945--Conscript labor--Czechoslovakia.