Mysterious messages / Blackwood, Gary L

Author:

ISBN13: 
9780525479604
Compare Title: 
mysteriousmessagesahistoryofcodesandciphers
Call Number: 
652

Mysterious messages

a history of codes and ciphers
  • Blackwood, Gary L
2009
Introduces children to the different ways codes and ciphers have been used throughout history and includes simple puzzles for readers to solve.
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