Bound To Stay Bound

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 Code makers & code breakers (Beyond The Battlefield)
 Author: Wells, Allen R.

 Publisher:  Rourke Educational Media (2021)

 Dewey: 355
 Classification: Nonfiction
 Physical Description: 32 p., ill. (some col.), 23 cm

 BTSB No: 933254 ISBN: 9781731649034
 Ages: 9-12 Grades: 4-7

 Subjects:
 Ciphers
 Cryptography
 Military art and science

Price: $15.77

Summary:
Uncovers the amazing tales of courageous and innovative people and groups who created--and cracked--seemingly unbreakable codes during times of war.




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