Smith Laurence Dwight. (1971). Cryptography: The science of secret writing. Dover.
Chicago Style (17th ed.) CitationSmith Laurence Dwight. Cryptography: The Science of Secret Writing. Dover, 1971.
MLA (8th ed.) CitationSmith Laurence Dwight. Cryptography: The Science of Secret Writing. Dover, 1971.
Warning: These citations may not always be 100% accurate.