United States. National Security Agency/Central Security Service. Center for Cryptologic History. (2015). Rare books in the National Cryptologic Museum. Center for Cryptologic History, NSA.
Chicago Style (17th ed.) CitationUnited States. National Security Agency/Central Security Service. Center for Cryptologic History. Rare Books in the National Cryptologic Museum. [Place of publication not identified]: Center for Cryptologic History, NSA, 2015.
MLA (9th ed.) CitationUnited States. National Security Agency/Central Security Service. Center for Cryptologic History. Rare Books in the National Cryptologic Museum. Center for Cryptologic History, NSA, 2015.
Warning: These citations may not always be 100% accurate.