The man who broke Purple : a life of Colonel William F. Friedman, who deciphered the Japanese code in World War II /

Bibliographic Details
Main Author:	Clark, Ronald (Ronald William), 1916-1987
Format:	Book
Language:	English
Published:	Boston : Little, Brown, 1977.
Edition:	1st American ed.
Subjects:	Friedman, William F. > (William Frederick), > 1891-1969. Cryptographers > United States > Biography.

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