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missing page info • first pub 1948 (view editions)
ISBN/UID: None
Format: Not specified
Language: English
Publisher: Not specified
Edition Pub Date: Not specified
nonfiction
reference
informative
lighthearted
slow-paced
Description
An introduction to simple codes and cyphers for children, including a history of codes.
Community Reviews
Content Warnings
missing page info • first pub 1948 (view editions)
ISBN/UID: None
Format: Not specified
Language: English
Publisher: Not specified
Edition Pub Date: Not specified
nonfiction
reference
informative
lighthearted
slow-paced
Description
An introduction to simple codes and cyphers for children, including a history of codes.
Community Reviews
Content Warnings