APA (7th ed.) Citation

United States. War Department, Slater, R., & Gregory, J. F. (1885). Telegraphic code to insure secrecy in transmission of telegrams, revised and adapted for special use from publication of Robert Slater. G.P.O..

Chicago Style (17th ed.) Citation

United States. War Department, Robert Slater, and James F. Gregory. Telegraphic Code to Insure Secrecy in Transmission of Telegrams, Revised and Adapted for Special Use from Publication of Robert Slater. Washington, DC: G.P.O., 1885.

MLA (8th ed.) Citation

United States. War Department, et al. Telegraphic Code to Insure Secrecy in Transmission of Telegrams, Revised and Adapted for Special Use from Publication of Robert Slater. G.P.O., 1885.