Purpurowy kod /
Brzeski, Rafal.
Purpurowy kod / Rafal Brzeski. - Wyd. 1. - Warszawa : Wydawn. Bellona, 1995. - 196 p. ; 25 cm. - Kulisy wywiadu i kontrwywiadu .
An history of the intelligence service of the United States and its role in deciphering the Japanese code during World War II.
8311084432
Intelligence Service--United States.
Espionage--United States.
Purpurowy kod / Rafal Brzeski. - Wyd. 1. - Warszawa : Wydawn. Bellona, 1995. - 196 p. ; 25 cm. - Kulisy wywiadu i kontrwywiadu .
An history of the intelligence service of the United States and its role in deciphering the Japanese code during World War II.
8311084432
Intelligence Service--United States.
Espionage--United States.