Cita APA (7a ed.)

United States. (2014). American cryptology: Two centuries of tradition. National Security Agency.

Cita Chicago Style (17a ed.)

United States. American Cryptology: Two Centuries of Tradition. [Fort Meade, Md.?]: National Security Agency, 2014.

Cita MLA (9a ed.)

United States. American Cryptology: Two Centuries of Tradition. National Security Agency, 2014.