APA Citation

Smith, L. D. (1971). Cryptography: The science of secret writing. New York: Dover Publications.

Chicago Style Citation

Smith, Laurence Dwight. Cryptography: The Science of Secret Writing. New York: Dover Publications, 1971.

MLA Citation

Smith, Laurence Dwight. Cryptography: The Science of Secret Writing. New York: Dover Publications, 1971.

Warning: These citations may not always be 100% accurate.