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163 pages • first pub 1981 (editions)
ISBN/UID: 9780208023414
Format: Hardcover
Language: English
Publisher: Not specified
Publication date: Not specified
adventurous
reflective
medium-paced
Description
Presents a variety of codes and ciphers and includes messages to encode and decode, as part of a story.
Community Reviews
Content Warnings
163 pages • first pub 1981 (editions)
ISBN/UID: 9780208023414
Format: Hardcover
Language: English
Publisher: Not specified
Publication date: Not specified
adventurous
reflective
medium-paced
Description
Presents a variety of codes and ciphers and includes messages to encode and decode, as part of a story.
Community Reviews
Content Warnings