Cofnodi Dyfyniadau
Dyfyniad APA
Kahn, D. (2004). The reader of gentlemen's mail: Herbert O. Yardley and the birth of American codebreaking. Yale University Press.
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Dyfyniad Arddull Chicago
Kahn, David. The Reader of Gentlemen's Mail: Herbert O. Yardley and the Birth of American Codebreaking. New Haven: Yale University Press, 2004.
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Dyfyniad MLA
Kahn, David. The Reader of Gentlemen's Mail: Herbert O. Yardley and the Birth of American Codebreaking. Yale University Press, 2004.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.