Columbia subject headings:
Béon, Yves.
Prisoners of war--France--Biography.
Prisoners of war--Germany--Biography.
World War, 1939-1945--Concentration camps--Germany.
World War, 1939-1945--Personal narratives, French.
Harvard subject headings:
Béon, Yves.
Dora (Concentration camp)
Prisoners of war--France--Biography
Prisoners of war--Germany--Biography
Rocketry--Germany--History.
V-1 bomb.
V-2 rocket.
World War, 1939-1945--Concentration camps--Germany.
World War, 1939-1945--Conscript labor--Germany.
World War, 1939-1945--Personal narratives, French.
World War, 1939-1945--Prisoners and prisons, German.
Princeton subject headings:
Béon, Yves.
Prisoners of war--France--Biography.
Prisoners of war--Germany--Biography.
World War, 1939-1945--Concentration camps--Germany.
World War, 1939-1945--Personal narratives, French.