APA-Zitierstil (7. Ausg.)

Smith, L. D. (1943). Cryptography: The science of secret writing. Norton.

Chicago-Zitierstil (17. Ausg.)

Smith, Laurence Dwight. Cryptography: The Science of Secret Writing. New York: Norton, 1943.

MLA-Zitierstil (9. Ausg.)

Smith, Laurence Dwight. Cryptography: The Science of Secret Writing. Norton, 1943.