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Codebreakers
Codebreakers
Author: Jonathan Hancock
A fun and informative guide to making and breaking secret codes. Starting with a mysterious letter to the reader written in a secret language, the book goes on to cover codes such as Egyptian hieroglyphics, smoke signals and code languages, and on to modern day computer and bar codes.
ISBN-13: 9780340693476
ISBN-10: 0340693479
Publication Date: 6/18/1997
Pages: 128
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Publisher: Hodder Children's Books
Book Type: Paperback
Members Wishing: 0
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