Cita APA (7a ed.)

United States, Boone, J. V., & Peterson, R. R. (2000). The start of the digital revolution, SIGSALY: Secure digital voice communications in World War II. Center for Cryptologic History, National Security Agency.

Cita Chicago Style (17a ed.)

United States, J. V. Boone, y R. R. Peterson. The Start of the Digital Revolution, SIGSALY: Secure Digital Voice Communications in World War II. Fort George G. Meade, Maryland.: Center for Cryptologic History, National Security Agency, 2000.

Cita MLA (9a ed.)

United States, et al. The Start of the Digital Revolution, SIGSALY: Secure Digital Voice Communications in World War II. Center for Cryptologic History, National Security Agency, 2000.