Columbia subject headings:
Harvard subject headings:
Pujol, Juan.
Spies--Great Britain--Biography.
World War, 1939-1945--Secret service--Germany.
World War, 1939-1945--Secret service--Great Britain.
Princeton subject headings:
Pujol, Juan.
Spies--Great Britain--Biography.
World War, 1939-1945--Secret service--Germany.
World War, 1939-1945--Secret service--Great Britain.