Columbia subject headings:
Mata Hari, 1876-1917.
Women spies--France--Biography.
Women spies--Germany--Biography.
World War, 1914-1918--Secret service--Germany.
Harvard subject headings:
Biographies.
Mata Hari, 1876-1917
Women spies--France--Biography.
Women spies--Germany--Biography.
World War, 1914-1918--Secret service--Germany
Princeton subject headings:
Biographies.
Mata Hari, 1876-1917.
Women spies--France--Biography.
Women spies--Germany--Biography.
World War, 1914-1918--Secret service--Germany.