Zanim złamano "Enigmę"--
Subtitle: polski radiowywiad podczas wojny z bolszewicką Rosją 1918-1920
By: Grzegorz Nowik.
Edition: Wyd. 1.
Publisher: Oficyna Wydawnicza Rytm; Rytm
Published: 2004
Place of publication: Warszawa
Language: pol
Number of pages: 1054
Subjects: Telegraph, Wireless -- Poland -- History -- 20th century.; Radio, Military -- Poland -- History -- 20th century.; Military intelligence -- Poland -- History -- 20th century.; Poland -- History -- Wars of 1918-1921 -- Military intelligence.; Poland -- History -- Wars of 1918-1921 -- Cryptography.
Notes: At head of title: Wojskowe Biuro Badań Historycznych.

"1."

Includes bibliographical references (p. 927-[951]) and indexes.