An edition of The man who broke Purple (1977)
The man who broke Purple
the life of the world's greatest cryptologist, Colonel William F. Friedman
By Ronald William Clark
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Publish Date
1977
Publisher
Weidenfeld & Nicolson
Language
eng
Pages
242
Description:
subjects: Cryptographers, Biography, Cryptography, Composers, biography, Composers, united states
People: William F. Friedman (1891-1969)
Places: United States