Code breaking a history and exploration Verschlüsselte Botschaften. English Kippenhahn, Rudolf 1926- creator text bibliography nyu Woodstock, N.Y Overlook Press 1999 monographic eng ger
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283 p. : ill. ; 24 cm. Rudolf Kippenhahn ; translated from the German, in collaboration with the author, by Ewald Osers. Includes bibliographical references (p. [273]-275) and index. Cryptography Cryptography History Z103 .K5613 1999 652.82 KIC 0879519193 8173712042 98048791 http://www.loc.gov/catdir/toc/fy034/98048791.html http://www.loc.gov/catdir/toc/fy034/98048791.html DLC 981013 20140808115645.0 2617785