Columbia subject headings:
Harvard subject headings:
Great Britain. Royal Navy--Officers--Biography.
Peacock, Alan T., 1922-
Peacock, Alan T., 1922-2014.
World War, 1939-1945--Cryptography.
World War, 1939-1945--Military intelligence--Great Britain.
World War, 1939-1945--Naval operations, British.
World War, 1939-1945--Personal narratives, British.
Princeton subject headings:
Great Britain. Royal Navy--Officers.
Peacock, Alan T., 1922-2014.
World War, 1939-1945--Great Britain--Cryptography.
World War, 1939-1945--Naval operations, British.
World War, 1939-1945--Personal narratives, British.