Policy of War Department in regard to use of codes and ciphers.

Bibliographic Details

Corporate Author:	United States. War Department
Format:	Government Document eBook
Language:	English
Published:	Washington : [publisher not identified], 1921.
Series:	War Dept. Circ. No. 1921/116
Subjects:	Ciphers. Electronic books.
Online Access:	Connect to the full text of this electronic document