American cryptology : two centuries of tradition.
| Other author | United States. National Security Agency/Central Security Service. History and Publications Staff. |
| Format | Microform |
| Publication Info | [Fort George G. Meade, Md.] : National Security Agency, History and Publications Staff, [1998] |
| Description | 3 unnumbered pages : illustrations ; 22 cm |
| Subjects |
| General note | Cover title. |
| General note | Shipping list no.: 2002-0529-M. |
| Reproduction note | Joyner- Microfiche. [Washington, D.C.] : Supt. of Docs., U.S. G.P.O., 2002. 1 microfiche : negative. |
| GPO item number | 0306 (MF) |
| Govt. docs number | D 1.2:C 88 |