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How to keep a secretHow to keep a secret

How to keep a secret1978

Elizabeth James

About this book

Presents various methods of writing, speaking, and signaling secret messages.

Details

First published
1978
OL Work ID
OL15853034W

Subjects

CiphersJuvenile literatureCryptographyChildren's fictionBehavior, fiction

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HardcoverOpen Library
Book data from Open Library. Cover images courtesy of Open Library.