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- 77018295 abstract "Presents various methods of writing, speaking, and signaling secret messages.".
- 77018295 contributor B3037109.
- 77018295 contributor B3037110.
- 77018295 created "c1978.".
- 77018295 date "1978".
- 77018295 date "c1978.".
- 77018295 dateCopyrighted "c1978.".
- 77018295 description "Presents various methods of writing, speaking, and signaling secret messages.".
- 77018295 extent "56 p. :".
- 77018295 identifier "0688418287.0688518281".
- 77018295 issued "1978".
- 77018295 issued "c1978.".
- 77018295 language "eng".
- 77018295 publisher "New York : Lothrop, Lee & Shepard,".
- 77018295 subject "001.54/36".
- 77018295 subject "Ciphers Juvenile literature.".
- 77018295 subject "Ciphers.".
- 77018295 subject "Cryptography Juvenile literature.".
- 77018295 subject "Cryptography.".
- 77018295 subject "Z103.3 .J35".
- 77018295 title "How to keep a secret : writing and talking in code / Elizabeth James & Carol Barkin ; ill. by Joel Schick.".
- 77018295 type "text".