The reader of gentlemen's mail [electronic resource] : Herbert O. Yardley and the birth of American codebreaking / David Kahn.
Material type:
- 940.4/8673/092 B 22
- UB271.U52 Y374 2004
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Includes bibliographical references (p. 291-304) and index.
Electronic reproduction. Ann Arbor, MI : ProQuest, 2015. Available via World Wide Web. Access may be limited to ProQuest affiliated libraries.
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