Kahn, D. (1967). The codebreakers: The story of secret writing (First edition.). The Macmillan Company.
芝加哥风格引文Kahn, David. The Codebreakers: The Story of Secret Writing. First edition. New York: The Macmillan Company, 1967.
MLA引文Kahn, David. The Codebreakers: The Story of Secret Writing. First edition. The Macmillan Company, 1967.
警告：这些引文格式不一定是100％准确.