St John Karp

Librarian, Archivist, & Ornamental Hermit

The first breaking of Enigma : some of the pioneering techniques developed by the Polish Cipher Bureau / by Frank Carter.

Type Book
By Carter, Frank (Frank L.), author.
Languages English
Publisher Bletchley : Bletchley Park Trust, 1999.
Physical Description 35 pages : charts ; 21 cm.
Subjects Cryptography. | World War, 1939-1945.
Holdings
  • lhmtat Main lair shelves 1