Columbia subject headings:
Harvard subject headings:
Concentration camp inmates--Austria--Biography.
Degroote, Jean, 1923-1984.
Germany. Geheime Staatspolizei
Mauthausen (Concentration camp)
World War, 1939-1945--Personal narratives, French.
World War, 1939-1945--Prisoners and prisons, German--Biography.
World War, 1939-1945--Underground movements--France--Biography.
Princeton subject headings:
Degroote, Jean, 1923-1984.
Mauthausen (Concentration camp)
World War, 1939-1945--Personal narratives, French.
World War, 1939-1945--Prisoners and prisons, German.