The cipher disk.
Title:
The cipher disk.
Author:
United States. National Security Agency.
Publication Information:
[Fort George G. Meade, Md.?] : National Security Agency, [19--]
Physical Description:
1 online resource ([2] pages)
Local Note:
O'Reilly
Added Corporate Author:
Electronic Access:
https://learning.oreilly.com/library/view/~/01120100022SIhttps://learning.oreilly.com/library/view/~/01120100022SI/?ar
https://go.oreilly.com/library-access/library/view/-/01120100022SI/?ar