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Secret warfare; the battle of codes and ciphers.
Van Pelt Library Z103 .N67 1973
Mixed Availability
- Format:
- Book
- Author/Creator:
- Norman, Bruce.
- Language:
- English
- Subjects (All):
- Cryptography--History.
- Cryptography.
- Ciphers.
- History.
- Physical Description:
- 187 pages : illustrations, maps. ; 22 cm
- Place of Publication:
- Washington, D. C. : Acropolis Books, [1973]
- Notes:
- Bibliography: pages 177-179.
- ISBN:
- 0715362232
- OCLC:
- 836578
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