Essential matters : a history of the Cryptographic Branch of the People's Army of Viet-Nam, 1945-1975 : with a supplement on cryptography in the border guard (formerly the Armed Public Security Forces), 1959-1989 / translated and edited by David W. Gaddy.
| Other author | Gaddy, David Winfred. |
| Other author | United States. National Security Agency/Central Security Service. Center for Cryptologic History. |
| Format | Microform |
| Publication Info | [Fort George G. Meade, Md.] : Center for Cryptologic History, National Security Agency, 1994. |
| Description | xviii, 196 pages : illustrations ; 28 cm. |
| Subjects |
| Portion of title | History of the Cryptographic Branch of the People's Army of Viet-Nam, 1945-1975 |
| Series | United States cryptologic history. Special series ; no. 5 United States cryptologic history. Special series no. 5. ^A573876 |
| General note | Translated from the Vietnamese. |
| General note | Shipping list no.: 2002-0529-M. |
| General note | "CCH-E32-94-02"--Cover. |
| Bibliography note | Includes bibliographical references. |
| Reproduction note | Joyner- Microfiche. [Washington, D.C.] : Supt. of Docs., U.S. G.P.O., 2002 3 microfiches : negative. |
| GPO item number | 0306 (MF) |
| Govt. docs number | D 1.2:C 88/5 |