Showing 1 - 6 of 6 for search: 'Benson, Robert Louis', query time: 0.07s
by Benson, Robert Louis.
Published: National Security Agency, Center for Cryptologic History, 2001
Description: 61 pages : illustrations ; 22 cm.
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by Benson, Robert Louis.
Published: Center for Cryptologic History, National Security Agency, 1997
Description: x, 185 pages : illustrations, portraits ; 28 cm.
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by Benson, Robert Louis,
Published: Center for Cryptologic History, 2001
Description: 1 online resource (61 pages) : illustrations.
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by Benson, Robert Louis,
Published: Center for Cryptologic History, National Security Agency, 1997
Description: 1 online resource (x, 185 pages) : illustrations.
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by Hatch, David A.
Published: National Security Agency, 2000
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Published: National Security Agency : Central Intelligence Agency, 1996
Description: xliv, 450 pages ; 28 cm.
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