Title Top secret ultra / Peter Calvocoressi.

Publication Info.	New York : Pantheon Books, [1980]
	©1980

Copies

Location	Call No.	Status
Bristol, Main Library - Non Fiction	940.93 C139	Check Shelf
Manchester, Main Library - Non Fiction	940.5486	Check Shelf
South Windsor Public Library - Non Fiction	940.54 C13T	Check Shelf

Edition	First American edition.
Description	132 pages, [8] leaves of plates : illustrations ; 22 cm
Bibliography	Includes index.
Subject	Calvocoressi, Peter.
	World War, 1939-1945 -- Cryptography.
	World War, 1939-1945 -- Secret service -- Great Britain.
	World War, 1939-1945 -- Personal narratives, British.
ISBN	0394511549: $10.95

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