Kahn, D. (1967). The codebreakers: The story of secret writing (First edition.). The Macmillan Company.
Citación estilo ChicagoKahn, David. The Codebreakers: The Story of Secret Writing. First edition. New York: The Macmillan Company, 1967.
Cita MLAKahn, David. The Codebreakers: The Story of Secret Writing. First edition. The Macmillan Company, 1967.
Warning: These citations may not always be 100% accurate.