Columbia subject headings:
Great Britain--Politics and government--20th century.
Great Britain. Cabinet Office--History.
Hankey, Maurice Pascal Alers Hankey, Baron, 1877-1963.
Official secrets--Great Britain--History--20th century.
Statesmen--Great Britain--Biography.
Harvard subject headings:
Great Britain--Politics and government--20th century.
Great Britain. Cabinet Office--History.
Hankey, Maurice Pascal Alers Hankey, Baron, 1877-1963
Official secrets--Great Britain--History--20th century.
Statesmen--Great Britain--Biography.
Princeton subject headings:
Great Britain--Politics and government--20th century.
Great Britain. Cabinet Office--History.
Hankey, Maurice Pascal Alers Hankey, Baron, 1877-1963.
Official secrets--Great Britain--History--20th century.
Statesmen--Great Britain--Biography.